Plant Kingdom 11th Science Lessons
Plant Kingdom 11th Science Lessons
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Question 1 of 140
1. Question
Recently with the aid of molecular characteristics which among the following was not segregated from plant kingdom and placed under separate kingdoms?
Correct
Traditionally organisms existing on the earth were classified into plants and animals based on nutrition, locomotion and presence or absence of cell wall. Bacteria, Fungi, Algae, Bryophytes, Pteridophytes, Gymnosperms and Angiosperms were included under plant group. Recently with the aid of molecular characteristics Bacteria and Fungi were segregated and placed under separate kingdoms.
Incorrect
Traditionally organisms existing on the earth were classified into plants and animals based on nutrition, locomotion and presence or absence of cell wall. Bacteria, Fungi, Algae, Bryophytes, Pteridophytes, Gymnosperms and Angiosperms were included under plant group. Recently with the aid of molecular characteristics Bacteria and Fungi were segregated and placed under separate kingdoms.
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Question 2 of 140
2. Question
Plants are unique living entities as they are endowed with the power to harvest the light energy from the sun and to convert it into which energy in the form of food?
Correct
Plants are unique living entities as they are endowed with the power to harvest the light energy from the sun and to convert it to chemical energy in the form of food through the astounding reaction, photosynthesis. They not only supply nutrients to all living things on earth but sequester carbon-di-oxide during photosynthesis, thus minimizing the effect of one of the major green-house gases that increase the global temperature.
Incorrect
Plants are unique living entities as they are endowed with the power to harvest the light energy from the sun and to convert it to chemical energy in the form of food through the astounding reaction, photosynthesis. They not only supply nutrients to all living things on earth but sequester carbon-di-oxide during photosynthesis, thus minimizing the effect of one of the major green-house gases that increase the global temperature.
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Question 3 of 140
3. Question
In classification which among the following is divided into Bryophyta and Tracheophyta?
Correct
Classification widely accepted for plants now include Embryophyta which is divided into Bryophyta and Tracheophyta. The latter is further divided into Pteridophyta and Spermatophyta (Gymnospermae and Angiospermae).
Incorrect
Classification widely accepted for plants now include Embryophyta which is divided into Bryophyta and Tracheophyta. The latter is further divided into Pteridophyta and Spermatophyta (Gymnospermae and Angiospermae).
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Question 4 of 140
4. Question
Alternation of the haploid gametophytic phase (n) with diploid sporophytic phase (2n) during the life cycle is ______
Correct
Alternation of generation is common in all plants. Alternation of the haploid gametophytic phase (n) with diploid sporophytic phase (2n) during the life cycle is called alternation of generation.
Incorrect
Alternation of generation is common in all plants. Alternation of the haploid gametophytic phase (n) with diploid sporophytic phase (2n) during the life cycle is called alternation of generation.
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Question 5 of 140
5. Question
Which among the following is not the life cycle pattern in plant?
Correct
Life cycle patterns in plants are a) Haplontic, b) Diplontic, c) Haplo-diplontic.
Incorrect
Life cycle patterns in plants are a) Haplontic, b) Diplontic, c) Haplo-diplontic.
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Question 6 of 140
6. Question
Which among the following statement is correct
1) Haplontic Life Cycle: Gametophytic phase is dominant, photosynthetic and independent, whereas sporophytic phase is represented by the zygote. Zygote undergoes meiosis to restore haploid condition.
2) Diplontic Life Cycle: Sporophytic phase (2n) is dominant, photosynthetic and independent. The gametophytic phase is represented by the single to few celled gametophyte. The gametes fuse to form zygote which develops into sporophyte.
3) Haplodiplontic Life Cycle: This type of life cycle is found in embryophytes, bryophytes and pteridophytes which is intermediate between haplontic and diplontic type. These three phases are unicellular. but they differ in their dominant phase.Correct
Haplodiplontic Life Cycle This type of life cycle is found in bryophytes and pteridophytes which is intermediate between haplontic and diplontic type. Both the phases are multicellular. but they differ in their dominant phase.
Incorrect
Haplodiplontic Life Cycle This type of life cycle is found in bryophytes and pteridophytes which is intermediate between haplontic and diplontic type. Both the phases are multicellular. but they differ in their dominant phase.
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Question 7 of 140
7. Question
Which among the following is not the example of Diplontic Life Cycle?
Correct
Fucus, gymnosperms and angiosperms are example of Diplontic life cycle. Volvox, Spirogyra are example of Haplontic life cycle.
Incorrect
Fucus, gymnosperms and angiosperms are example of Diplontic life cycle. Volvox, Spirogyra are example of Haplontic life cycle.
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Question 8 of 140
8. Question
In which among the following dominant independent phase is gametophyte and it alternates with short-lived multicellular sporophyte totally or partially dependent on the gametophyte?
Correct
In bryophytes dominant independent phase is gametophyte and it alternates with short-lived multicellular sporophyte totally or partially dependent on the gametophytes.
Incorrect
In bryophytes dominant independent phase is gametophyte and it alternates with short-lived multicellular sporophyte totally or partially dependent on the gametophytes.
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Question 9 of 140
9. Question
Which are simple plants that lack true roots, true stems and true leaves.?
Correct
Algae are simple plants that lack true roots, true stems and true leaves. Two-third of our earth’s surface is covered by oceans and seas. The photosynthetic plants called algae are present here. More than half of the total primary productivity of the world depends on this plant group. Further, other aquatic organisms also depend upon them for their existence.
Incorrect
Algae are simple plants that lack true roots, true stems and true leaves. Two-third of our earth’s surface is covered by oceans and seas. The photosynthetic plants called algae are present here. More than half of the total primary productivity of the world depends on this plant group. Further, other aquatic organisms also depend upon them for their existence.
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Question 10 of 140
10. Question
In which among the following, sporophyte is the independent phase. It alternates with multicellular saprophytic or autotrophic, independent, short lived gametophyte(n)?
Correct
In pteridophytes sporophyte is the independent phase. It alternates with multicellular saprophytic or autotrophic, independent, short lived gametophyte(n).
Incorrect
In pteridophytes sporophyte is the independent phase. It alternates with multicellular saprophytic or autotrophic, independent, short lived gametophyte(n).
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Question 11 of 140
11. Question
The study of algae is called ____
Correct
The study of algae is called algology or phycology. Some of the eminent algologists include F.E. Fritsch, F.E. Round, R.E. Lee, M.O.Parthasarathy Iyengar, M.S. Randhawa, Y. Bharadwaja, V.S. Sundaralingam and T.V.Desikachary.
Incorrect
The study of algae is called algology or phycology. Some of the eminent algologists include F.E. Fritsch, F.E. Round, R.E. Lee, M.O.Parthasarathy Iyengar, M.S. Randhawa, Y. Bharadwaja, V.S. Sundaralingam and T.V.Desikachary.
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Question 12 of 140
12. Question
Who among the following is the father of Father of Indian Phycology?
Correct
M.O.Parthasarathy (1886-1963) ‘Father of Indian Phycology’. He conducted research on structure, cytology, reproduction and taxonomy of Algae. He published a Monograph on Volvocales.
Incorrect
M.O.Parthasarathy (1886-1963) ‘Father of Indian Phycology’. He conducted research on structure, cytology, reproduction and taxonomy of Algae. He published a Monograph on Volvocales.
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Question 13 of 140
13. Question
Which among the following algal was not reported by M. O. Parthasarathy?
Correct
New algal forms like Fritschiella, Ecballocystopsis, Charasiphon and Cylindrocapsopsis. were reported by M. O. Parthasarathy.
Incorrect
New algal forms like Fritschiella, Ecballocystopsis, Charasiphon and Cylindrocapsopsis. were reported by M. O. Parthasarathy.
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Question 14 of 140
14. Question
Which algae grow in snow covered mountains and impart red colour to the snow (Red snow)?
Correct
Chlamydomonas nivalis grow in snow covered mountains and impart red colour to the snow (Red snow).
Incorrect
Chlamydomonas nivalis grow in snow covered mountains and impart red colour to the snow (Red snow).
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Question 15 of 140
15. Question
A few algae grow on the surface of aquatic plants and are called ____
Correct
A few algae grow on the surface of aquatic plants and are called epiphytic algae (Coleochaete, and Rhodymenia).
Incorrect
A few algae grow on the surface of aquatic plants and are called epiphytic algae (Coleochaete, and Rhodymenia).
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Question 16 of 140
16. Question
Which among the following algae grow on the shells of molluscs?
Correct
Chlorella leads an endozoic life in hydra and sponges whereas Cladophora crispata grow on the shells of molluscs.
Incorrect
Chlorella leads an endozoic life in hydra and sponges whereas Cladophora crispata grow on the shells of molluscs.
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Question 17 of 140
17. Question
Which among the following algae grows in salt pans?
Correct
Algae are adapted to thrive in harsh environment too. Dunaliella salina grows in salt pans (Halophytic alga).
Incorrect
Algae are adapted to thrive in harsh environment too. Dunaliella salina grows in salt pans (Halophytic alga).
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Question 18 of 140
18. Question
Which among the following algae is freshwater algae?
Correct
Algae are autotrophs, and grow in a wide range of habitats. Majority of them are aquatic, marine (Gracilaria, and Sargassum) and freshwater (Oedogonium, and Ulothrix) and also found in soils (Fritschiella, and Vaucheria).
Incorrect
Algae are autotrophs, and grow in a wide range of habitats. Majority of them are aquatic, marine (Gracilaria, and Sargassum) and freshwater (Oedogonium, and Ulothrix) and also found in soils (Fritschiella, and Vaucheria).
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Question 19 of 140
19. Question
Which is the Oldest recorded alga, which was discovered in the banded iron formations of northern Michigan?
Correct
The Oldest recorded alga is Grypania, which was discovered in the banded iron formations of northern Michigan and dated to approximately 2100Ma.
Incorrect
The Oldest recorded alga is Grypania, which was discovered in the banded iron formations of northern Michigan and dated to approximately 2100Ma.
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Question 20 of 140
20. Question
Match the following thallus organization in algae with example
i. Unicellular motile – 1. Volvox
ii. Unicellular non-motile – 2. Chlamydomonas
iii. Colonial motile – 3. Vaucheria
iv. Colonial non-motile – 4. Hydrodictyon
v. Siphonous – 5. ChlorellaCorrect
The algae show a great diversity in size, shape and structure. A wide range of thallus organisation is found in algae. Unicellular motile (Chlamydomonas), unicellular non-motile (Chlorella), Colonial motile (Volvox), Colonial non motile (Hydrodictyon), siphonous (Vaucheria).
Incorrect
The algae show a great diversity in size, shape and structure. A wide range of thallus organisation is found in algae. Unicellular motile (Chlamydomonas), unicellular non-motile (Chlorella), Colonial motile (Volvox), Colonial non motile (Hydrodictyon), siphonous (Vaucheria).
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Question 21 of 140
21. Question
Algae are eukaryotes except which algae?
Correct
Algae are eukaryotes except blue green algae. The plant body does not show differentiation into tissue systems.
Incorrect
Algae are eukaryotes except blue green algae. The plant body does not show differentiation into tissue systems.
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Question 22 of 140
22. Question
In Chara the thallus is encrusted with what?
Correct
In Chara the thallus is encrusted with calcium carbonate. Some algae possess algin, polysulphate esters of polysaccharides which are the sources for the alginate, agar agar and carrageenan.
Incorrect
In Chara the thallus is encrusted with calcium carbonate. Some algae possess algin, polysulphate esters of polysaccharides which are the sources for the alginate, agar agar and carrageenan.
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Question 23 of 140
23. Question
Which among the following statement is correct
1) The cell wall of algae is made up of cellulose and hemicellulose. Siliceous walls are present in diatoms. The cell has a membrane bound nucleus and cell organelles like chloroplast, mitochondria, endoplasmic reticulum, golgi bodies etc., Pyrenoids are present.
2) They are proteinaceous bodies found in chromatophores and assist in the synthesis and storage of starch. The pigmentation, reserve food material and flagellation differ among the algal groups.Correct
The cell wall of algae is made up of cellulose and hemicellulose. Siliceous walls are present in diatoms. The cell has a membrane bound nucleus and cell organelles like chloroplast, mitochondria, endoplasmic reticulum, golgi bodies etc., Pyrenoids are present.
Incorrect
The cell wall of algae is made up of cellulose and hemicellulose. Siliceous walls are present in diatoms. The cell has a membrane bound nucleus and cell organelles like chloroplast, mitochondria, endoplasmic reticulum, golgi bodies etc., Pyrenoids are present.
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Question 24 of 140
24. Question
In which among the following method algae does not reproduce?
Correct
Algae reproduces by vegetative, asexual and sexual methods.
Incorrect
Algae reproduces by vegetative, asexual and sexual methods.
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Question 25 of 140
25. Question
Which among the following is not the vegetative reproduction of algae?
Correct
Vegetative reproduction includes fission, fragmentation, budding, bulbils, akinetes, and tubers.
Incorrect
Vegetative reproduction includes fission, fragmentation, budding, bulbils, akinetes, and tubers.
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Question 26 of 140
26. Question
In which vegetative reproduction of algae Thick-walled spores meant for perennation and germinates with the advent of favourable condition?
Correct
In Akinetes (vegetative reproduction) Thick-walled spores meant for perennation and germinates with the advent of favourable condition.
Incorrect
In Akinetes (vegetative reproduction) Thick-walled spores meant for perennation and germinates with the advent of favourable condition.
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Question 27 of 140
27. Question
Which among the following is the example of Akinetes?
Correct
Pithophora is example of Akinetes.
Incorrect
Pithophora is example of Akinetes.
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Question 28 of 140
28. Question
In which vegetative reproduction in algae, in unicellular forms the cell divides mitotically to produce two daughter cells?
Correct
During fission (vegetative reproduction) in unicellular forms the cell divides mitotically to produce two daughter cells.
Incorrect
During fission (vegetative reproduction) in unicellular forms the cell divides mitotically to produce two daughter cells.
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Question 29 of 140
29. Question
In which vegetative reproduction of algae, Structures found on the rhizoids and the lower nodes of Chara which store food materials?
Correct
In Tubers Structures found on the rhizoids and the lower nodes of Chara which store food materials.
Incorrect
In Tubers Structures found on the rhizoids and the lower nodes of Chara which store food materials.
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Question 30 of 140
30. Question
In which among the following vegetative reproduction a wedge-shaped modified branch develop in Sphacelaria?
Correct
In bulbils, a wedge-shaped modified branch develops in Sphacelaria. In Budding a lateral bud is formed in some members like Protosiphon and helps in reproduction
Incorrect
In bulbils, a wedge-shaped modified branch develops in Sphacelaria. In Budding a lateral bud is formed in some members like Protosiphon and helps in reproduction
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Question 31 of 140
31. Question
Which among the following is the example of Fragmentation (vegetative reproduction)?
Correct
In Fragmentation the fragments of parent thallus grow into new individual Example: Ulothrix. Chlamydomonas is example of fission.
Incorrect
In Fragmentation the fragments of parent thallus grow into new individual Example: Ulothrix. Chlamydomonas is example of fission.
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Question 32 of 140
32. Question
In which among the following asexual reproduction take place by production of thin walled non motile spores?
Correct
Asexual reproduction takes place by the production of zoospores motile spores (Ulothrix, Oedogonium). In aplanospore asexual reproduction take place by production of thin walled non motile spores.
Incorrect
Asexual reproduction takes place by the production of zoospores motile spores (Ulothrix, Oedogonium). In aplanospore asexual reproduction take place by production of thin walled non motile spores.
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Question 33 of 140
33. Question
In asexual reproduction, spores which look similar to parent cell are called ____
Correct
In asexual reproduction, spores which look similar to parent cell are called autospores.
Incorrect
In asexual reproduction, spores which look similar to parent cell are called autospores.
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Question 34 of 140
34. Question
The thick walled aplanospore are called ____
Correct
The thick walled aplanospore are called Hypnospore.
Incorrect
The thick walled aplanospore are called Hypnospore.
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Question 35 of 140
35. Question
Diploid thallus of Polysiphonia produce haploid spores after meiosis, these spores are called __
Correct
Diploid thallus of Polysiphonia produce haploid spores after meiosis, these spores are called Tetraspores.
Incorrect
Diploid thallus of Polysiphonia produce haploid spores after meiosis, these spores are called Tetraspores.
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Question 36 of 140
36. Question
Which among the following is the example aplanospore?
Correct
Vaucheria is example of aplanospore.
Incorrect
Vaucheria is example of aplanospore.
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Question 37 of 140
37. Question
Which among the following is the example of autospore?
Correct
Chlorella is example of autospore. Chlamydomonas nivalis is example of Hypnospore.
Incorrect
Chlorella is example of autospore. Chlamydomonas nivalis is example of Hypnospore.
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Question 38 of 140
38. Question
Which among the following is not the sexual reproduction in algae?
Correct
Sexual reproduction in algae is of three types 1. Isogamy, 2. Anisogamy and 3. Polygamy.
Incorrect
Sexual reproduction in algae is of three types 1. Isogamy, 2. Anisogamy and 3. Polygamy.
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Question 39 of 140
39. Question
Fusion of both morphologically and physiologically dissimilar gametes is known as ___
Correct
Fusion of both morphologically and physiologically dissimilar gametes is known as Oogamy.
Incorrect
Fusion of both morphologically and physiologically dissimilar gametes is known as Oogamy.
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Question 40 of 140
40. Question
Which among the following sexual reproduction in algae is incorrectly matched with its example?
1) Isogamy – Pandorina
2) Anisogamy – Ulothrix
3) Oogamy – SargassumCorrect
Ulothrix is example of Isogamy and Pandorina is example of Isogamy.
Incorrect
Ulothrix is example of Isogamy and Pandorina is example of Isogamy.
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Question 41 of 140
41. Question
Fusion of morphologically and Physiologically similar gametes is known as ____
Correct
Fusion of morphologically and Physiologically similar gametes is known as Isogamy. Fusion of either morphologically or physiologically dissimilar gametes is known as Anisogamy.
Incorrect
Fusion of morphologically and Physiologically similar gametes is known as Isogamy. Fusion of either morphologically or physiologically dissimilar gametes is known as Anisogamy.
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Question 42 of 140
42. Question
Who proposed a classification for algae based on pigmentation, types of flagella, reserve food materials, thallus structure and reproduction?
Correct
F.E. Fritsch proposed a classification for algae based on pigmentation, types of flagella, reserve food materials, thallus structure and reproduction. He published his classification in the book “The structure and reproduction of the Algae” (1935).
Incorrect
F.E. Fritsch proposed a classification for algae based on pigmentation, types of flagella, reserve food materials, thallus structure and reproduction. He published his classification in the book “The structure and reproduction of the Algae” (1935).
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Question 43 of 140
43. Question
F. E. Fritsch classifies algae into how many classes?
Correct
F. E. Fritsch classified algae into 11 classes.
Incorrect
F. E. Fritsch classified algae into 11 classes.
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Question 44 of 140
44. Question
Which among the following is not the classification of algae by F. E. Fritsch?
Correct
F. E. Fritsch classified algae into 11 classes namely Chlorophyceae, Xanthophyceae, Chrysophyceae, Bacillariophyceae, Cryptophyceae, Dinophyceae, Chloromonadineae, Euglenophyceae, Phaeophyceae, Rhodophyceae, Cyanophyceae.
Incorrect
F. E. Fritsch classified algae into 11 classes namely Chlorophyceae, Xanthophyceae, Chrysophyceae, Bacillariophyceae, Cryptophyceae, Dinophyceae, Chloromonadineae, Euglenophyceae, Phaeophyceae, Rhodophyceae, Cyanophyceae.
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Question 45 of 140
45. Question
. The members of Chlorophyceae are commonly called _____
Correct
The members of Chlorophyceae are commonly called ‘Green algae’.
Incorrect
The members of Chlorophyceae are commonly called ‘Green algae’.
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Question 46 of 140
46. Question
Which among the following species of Chlorophyceae is terrestrial?
Correct
Most of the species of Chlorophyceae are aquatic (Fresh water-Spirogyra, Marine -Ulva). A few are terrestrial (Trentipohlia).
Incorrect
Most of the species of Chlorophyceae are aquatic (Fresh water-Spirogyra, Marine -Ulva). A few are terrestrial (Trentipohlia).
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Question 47 of 140
47. Question
Which among the following algae is not the example of Chlorophyceae
Correct
Examples for the Chlorophyceae algae includes Chlorella, Chlamydomonas, Volvox, Spirogyra, Ulothrix, Chara and Ulva
Incorrect
Examples for the Chlorophyceae algae includes Chlorella, Chlamydomonas, Volvox, Spirogyra, Ulothrix, Chara and Ulva
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Question 48 of 140
48. Question
Match the following Chlorophyceae members based on size with example
i. Cup shaped – 1. Zygnema
ii. Discoid – 2. Ulothrix
iii. Girdle shaped – 3. Chara
iv. Reticulate – 4. Chlamydomonas
v. Stellate – 5. OedogoniumCorrect
Variation among the shape of the chloroplast is found in members of Chlorophyceae. It is cup shaped (Chlamydomonas), discoid (Chara), girdle shaped, (Ulothrix), reticulate (Oedogonium), spiral (Spirogyra), stellate (Zygnema) and plate like (Mougeoutia).
Incorrect
Variation among the shape of the chloroplast is found in members of Chlorophyceae. It is cup shaped (Chlamydomonas), discoid (Chara), girdle shaped, (Ulothrix), reticulate (Oedogonium), spiral (Spirogyra), stellate (Zygnema) and plate like (Mougeoutia).
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Question 49 of 140
49. Question
Which among the following statement is incorrect regarding Chlorophyceae
1) Chlorophyll ‘a’ and Chlorophyll ‘b’ are the major photosynthetic pigments. Storage bodies called Riella are present in the chloroplast and store potash. They also contain proteins. The cell wall is made up of outer layer of cellulose and inner layer of pectin.
2) Vegetative reproduction takes place by means of fragmentation and asexual reproduction is by the production of zoospores, aplanospores and akinetes. Sexual reproduction is present and may be isogamous, anisogamous or oogamous.Correct
Chlorophyll ‘a’ and Chlorophyll ‘b’ are the major photosynthetic pigments. Storage bodies called pyrenoids are present in the chloroplast and store starch. They also contain proteins. The cell wall is made up of inner layer of cellulose and outer layer of pectin.
Incorrect
Chlorophyll ‘a’ and Chlorophyll ‘b’ are the major photosynthetic pigments. Storage bodies called pyrenoids are present in the chloroplast and store starch. They also contain proteins. The cell wall is made up of inner layer of cellulose and outer layer of pectin.
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Question 50 of 140
50. Question
The member of Phaeophyceae class are called _____
Correct
The members of Phaeophyceae class are called ‘Brown algae’.
Incorrect
The members of Phaeophyceae class are called ‘Brown algae’.
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Question 51 of 140
51. Question
Majority of the phaeophyceae are found in which habitats?
Correct
Majority of the phaeophyceae are found in marine habitats. Pleurocladia is a fresh water form. The thallus is filamentous (Ectocarpus) frond like (Dictyota)or may be giant kelps (Laminaria and Macrocystis).
Incorrect
Majority of the phaeophyceae are found in marine habitats. Pleurocladia is a fresh water form. The thallus is filamentous (Ectocarpus) frond like (Dictyota)or may be giant kelps (Laminaria and Macrocystis).
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Question 52 of 140
52. Question
In Phaeophyceae, thallus is differentiated into leaf like photosynthetic part called ____
Correct
The thallus is differentiated into leaf like photosynthetic part called fronds, a stalk like structure called stipe and a holdfast which attach thallus to the substratum.
Incorrect
The thallus is differentiated into leaf like photosynthetic part called fronds, a stalk like structure called stipe and a holdfast which attach thallus to the substratum.
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Question 53 of 140
53. Question
Which among the following statement is correct regarding Phaeophyceae
1) The Pigments in Phaeophyceae include Chlorophyll x, y, Carotenoids and Xanthophylls. A yellow-green pigment called fucoxanthin is present and it gives shades of colour from shiny red to white to the algal members of this group.
2) Mannitol and Laminarin are the reserve food materials. Motile reproductive structures are present. Two laterally inserted unequal flagella are present. Among these one is whiplash and another is tinsel.
3) Although sexual reproduction ranges from isogamy to oogamy, most of the forms show oogamous type. Alternation of generation is present (isomorphic, heteromorphic or diplontic).Correct
The Pigments in Phaeophyceae include Chlorophyll a, c, Carotenoids and Xanthophylls. A golden brown pigment called fucoxanthin is present and it gives shades of colour from olive green to brown to the algal members of this group.
Incorrect
The Pigments in Phaeophyceae include Chlorophyll a, c, Carotenoids and Xanthophylls. A golden brown pigment called fucoxanthin is present and it gives shades of colour from olive green to brown to the algal members of this group.
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Question 54 of 140
54. Question
Which among the following is not the examples of Phaeophyceae
Correct
Examples for Phaeophyceae include Sargassum, Laminaria, Fucus and Dictyota.
Incorrect
Examples for Phaeophyceae include Sargassum, Laminaria, Fucus and Dictyota.
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Question 55 of 140
55. Question
The members of the Rhodophyceae are called ____
Correct
The members of the Rhodophyceae are called Red algae are mostly marine.
Incorrect
The members of the Rhodophyceae are called Red algae are mostly marine.
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Question 56 of 140
56. Question
Which among the following statement is correct regarding Rhodophyceae
1) In Rhodophyceae thallus is multicellular, macroscopic and diverse in form. Porphyridium is the unicellular form. Filamentous (Goniotrichum) ribbon like (Porphyra) are also present. Corallina and Lithothamnion are heavily impregnated with lime and form coral reefs.
2) Apart from chlorophyll a, r-phycoerythrin and r-phycocyanin are the photosynthetic pigments. Asexual reproduction takes place by means of monospores, neutral spores and tetraspores. The storage product is floridean starch.Correct
Incorrect
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Question 57 of 140
57. Question
In Rhodophyceae Sexual reproduction take place by ____
Correct
In Rhodophyceae Sexual reproduction is oogamous. Male sex organ is spermatangium which produces spermatium.
Incorrect
In Rhodophyceae Sexual reproduction is oogamous. Male sex organ is spermatangium which produces spermatium.
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Question 58 of 140
58. Question
In Rhodophyceae Female sex organ is called ____
Correct
In Rhodophyceae Female sex organ is called carpogonium. The spermatium is carried by the water currents and fuse with egg nucleus to form zygote. The zygote develops into carpospores. Meiosis occurs during carpospore formation. Alternation of generation is present.
Incorrect
In Rhodophyceae Female sex organ is called carpogonium. The spermatium is carried by the water currents and fuse with egg nucleus to form zygote. The zygote develops into carpospores. Meiosis occurs during carpospore formation. Alternation of generation is present.
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Question 59 of 140
59. Question
Which among the following is not the example of Rhodophyceae?
Correct
Examples for Rhodophyceae algae include Ceramium, Polysiphonia, Gelidium, Cryptonemia and Gigartina.
Incorrect
Examples for Rhodophyceae algae include Ceramium, Polysiphonia, Gelidium, Cryptonemia and Gigartina.
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Question 60 of 140
60. Question
Who is the father of Indian Bryology?
Correct
Shiv Ram Kashyap is the father of Indian Bryology. He published a book- ‘Liverworts of Western Himalayas and Punjab Plains’ He identified new genera like Atchinsoniella, Sauchia, Sewardiella and Stephansoniella.
Incorrect
Shiv Ram Kashyap is the father of Indian Bryology. He published a book- ‘Liverworts of Western Himalayas and Punjab Plains’ He identified new genera like Atchinsoniella, Sauchia, Sewardiella and Stephansoniella.
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Question 61 of 140
61. Question
Which among the following Algae is used for food purpose?
Correct
Chlorella, Laminaria, Sargassum, Ulva, Enteromorpha are the algae used for Food.
Incorrect
Chlorella, Laminaria, Sargassum, Ulva, Enteromorpha are the algae used for Food.
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Question 62 of 140
62. Question
Which among the following algae is involved in red rust of coffee?
Correct
Cephaleuros virescens is the algae involved in Red rust of coffee.
Incorrect
Cephaleuros virescens is the algae involved in Red rust of coffee.
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Question 63 of 140
63. Question
Which among the following algae is not used for Fertilizer?
Correct
Lithophyllum, Chara, Fucus are the algae used for Fertilizer.
Incorrect
Lithophyllum, Chara, Fucus are the algae used for Fertilizer.
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Question 64 of 140
64. Question
Which is a Cell wall material used for media preparation in the microbiology lab obtained from algae?
Correct
Agar Agar – Cell wall material used for media preparation in the microbiology lab. The algae used are Gracilaria, Gelidiella, Gigartina. Packing canned food, cosmetic, textile paper industry.
Incorrect
Agar Agar – Cell wall material used for media preparation in the microbiology lab. The algae used are Gracilaria, Gelidiella, Gigartina. Packing canned food, cosmetic, textile paper industry.
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Question 65 of 140
65. Question
Which among the following algae is used for Sewage treatment, Pollution indicators?
Correct
Chlorella, Scenedesmus, Chlamydomonas are the algae used for Sewage treatment, Pollution indicator.
Incorrect
Chlorella, Scenedesmus, Chlamydomonas are the algae used for Sewage treatment, Pollution indicator.
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Question 66 of 140
66. Question
Which algae is used for antibiotics?
Correct
Chlorella is used for antibiotics (Chlorellin).
Incorrect
Chlorella is used for antibiotics (Chlorellin).
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Question 67 of 140
67. Question
Which green alga is employed in Biofuel production?
Correct
A green alga Botryococcus braunii is employed in Biofuel production.
Incorrect
A green alga Botryococcus braunii is employed in Biofuel production.
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Question 68 of 140
68. Question
Which are the rich source of Iodine Chlorella is used as single cell Protein (SCP)?
Correct
Kelps are the rich source of Iodine Chlorella is used as single cell Protein (SCP).
Incorrect
Kelps are the rich source of Iodine Chlorella is used as single cell Protein (SCP).
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Question 69 of 140
69. Question
Which is an alga growing in salt pan is complement to our health and provide β carotene?
Correct
Dunaliella salina an alga, growing in salt pan is complement to our health and provide β carotene.
Incorrect
Dunaliella salina an alga, growing in salt pan is complement to our health and provide β carotene.
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Question 70 of 140
70. Question
Which algae is used for carrageenan (preparation n of tooth paste, paint, blood coagulant)?
Correct
Chondrus crispus is algae used for Carrageenan (Preparation of tooth paste, paint, blood coagulant).
Incorrect
Chondrus crispus is algae used for Carrageenan (Preparation of tooth paste, paint, blood coagulant).
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Question 71 of 140
71. Question
Which among the following algae is not used for Alginate – ice cream, paints, flame proof fabrics?
Correct
Laminaria, Ascophyllum are algae used for Alginate – ice cream, paints, flame proof fabrics.
Incorrect
Laminaria, Ascophyllum are algae used for Alginate – ice cream, paints, flame proof fabrics.
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Question 72 of 140
72. Question
Which among the following statement is correct
1) Algae like Laminaria, Sargassum, Ascophyllum, Fucus are used for Fodder. Diatom is algae used for Diatomaceous earth– water filters, insulation material, reinforcing agent in concrete and rubber.
2) Algae like Kappaphycus alvarezii, Gracilaria edulis and Gelidiella acerosa are commercially grown in the sea for harvesting the phycocolloids. Sea Palm is Postelia palmaeformis a brown alga.Correct
Incorrect
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Question 73 of 140
73. Question
Which are simplest land inhabiting cryptogams and are restricted to moist, shady habitats and they lack vascular tissue and hence called ‘Non- vascular cryptogams’?
Correct
Bryophytes are simplest land inhabiting cryptogams and are restricted to moist shady habitats. They lack vascular tissue and hence called ‘Non- vascular cryptogams.
Incorrect
Bryophytes are simplest land inhabiting cryptogams and are restricted to moist shady habitats. They lack vascular tissue and hence called ‘Non- vascular cryptogams.
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Question 74 of 140
74. Question
Which among the following statement is correct
1) A wide range of thallus organization known as Algae, majority of them are aquatic. The development of heterotrichous habit, development of parenchyma tissue and dichotomous branching in some algae supports the view that colonization of plants in land occurred in the past.
2) Bryophytes are simplest and non-primitive plant groups descended from alga – like ancestors. They are simple embryophytes. The plant body of bryophyte is pteridophyte and is differentiated into root, stem and leaf like structure.
3) Most of them are primitive land dwellers. Some of them are aquatic (Riella, Ricciocarpus). Vascular tissue like xylem and phloem are completely absent, hence called ‘Non vascular cryptogams’.Correct
Bryophytes are simplest and most primitive plant groups descended from alga – like ancestors. They are simple embryophytes. The plant body of bryophyte is gametophyte and is not differentiated into root, stem and leaf like structure.
Incorrect
Bryophytes are simplest and most primitive plant groups descended from alga – like ancestors. They are simple embryophytes. The plant body of bryophyte is gametophyte and is not differentiated into root, stem and leaf like structure.
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Question 75 of 140
75. Question
Bryophytes are also called as _____
Correct
Bryophytes are also called as ‘amphibians of plant kingdom’ because they need water for completing their life cycle.
Incorrect
Bryophytes are also called as ‘amphibians of plant kingdom’ because they need water for completing their life cycle.
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Question 76 of 140
76. Question
In bryophytes sexual reproduction is ____
Correct
In bryophytes Sexual reproduction is oogamous. Antheridia and Archegonia are produced in a protective covering and are multicellular. Water is essential for fertilization.
Incorrect
In bryophytes Sexual reproduction is oogamous. Antheridia and Archegonia are produced in a protective covering and are multicellular. Water is essential for fertilization.
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Question 77 of 140
77. Question
Which among the following statement is correct regarding bryophytes
1) The gametophyte is conspicuous, short lived phase of the life cycle. Thalloid forms are present in liverworts and absent in Hornworts. In Mosses leaf like, stem like structures are absent. In Liverworts thallus grows prostrate on the ground and is attached to the substratum by means of chord.
2) Two types of rhizoids are present namely smooth walled and pegged or tuberculate. Multicellular scales are also present. In Moss the plant body is erect with central axis bearing leaf like expansions. Multicellular rhizoids are present.Correct
The gametophyte is conspicuous, long lived phase of the life cycle. Thalloid forms are present in liverworts and Hornworts. In Mosses leaf like, stem like structures are present. In Liverworts thallus grows prostrate on the ground and is attached to the substratum by means of rhizoids.
Incorrect
The gametophyte is conspicuous, long lived phase of the life cycle. Thalloid forms are present in liverworts and Hornworts. In Mosses leaf like, stem like structures are present. In Liverworts thallus grows prostrate on the ground and is attached to the substratum by means of rhizoids.
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Question 78 of 140
78. Question
In bryophytes, which is the first cell of the sporophyte generation?
Correct
The zygote is the first cell of the sporophyte generation. It undergoes mitotic division to form multicellular undifferentiated embryo. The embryogeny is exoscopic (the first division of the zygote is transverse and the apex of the embryo develops from the outer cell). The embryo divides and give rise to sporophyte.
Incorrect
The zygote is the first cell of the sporophyte generation. It undergoes mitotic division to form multicellular undifferentiated embryo. The embryogeny is exoscopic (the first division of the zygote is transverse and the apex of the embryo develops from the outer cell). The embryo divides and give rise to sporophyte.
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Question 79 of 140
79. Question
Which among the following statement is correct regarding sexual reproduction in bryophytes?
1) The antheridia produce biflagellate antherozoids which swims in thin film of water and reach the archegonium and fuse with the egg to form diploid zygote. Water is essential for fertilization.
2) The sporophyte is dependent on gametophyte. It is differentiated into three recognizable parts namely foot, seta and capsule. Foot is the basal portion and is embedded in the gametophyte through which water and nutrients are supplied for the sporophyte.
3) The diploid spore mother cells found in the capsule region undergoes meiotic division and give rise to haploid spores. Bryophytes are homosporous. In some sporophytes elaters are present and help in dispersal of spores (Example: Marchantia). The spores germinate to produce gametophyte.Correct
Incorrect
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Question 80 of 140
80. Question
The zygote, embryo and the sporogonium constitute sporophytic phase. The green long living haploid phase is called ____
Correct
The zygote, embryo and the sporogonium constitute sporophytic phase. The green long living haploid phase is called gametophytic phase. The haploid gametophytic phase alternates with diploid sporophyte and shows heterologous alternation of generation.
Incorrect
The zygote, embryo and the sporogonium constitute sporophytic phase. The green long living haploid phase is called gametophytic phase. The haploid gametophytic phase alternates with diploid sporophyte and shows heterologous alternation of generation.
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Question 81 of 140
81. Question
Vegetative reproduction in bryophytes takes place by the formation of adventitious buds (Riccia fluitans) tubers develop in ____
Correct
Vegetative reproduction takes place by the formation of adventitious buds (Riccia fluitans) tubers develop in Anthoceros.
Incorrect
Vegetative reproduction takes place by the formation of adventitious buds (Riccia fluitans) tubers develop in Anthoceros.
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Question 82 of 140
82. Question
What was the propagative organ in Marchantia formed and help in reproduction?
Correct
In some form small detachable branches or brood bodies are formed, they help in vegetative reproduction as in Bryopteris fruticulose. In Marchantia propagative organs called gemmae are formed and help in reproduction.
Incorrect
In some form small detachable branches or brood bodies are formed, they help in vegetative reproduction as in Bryopteris fruticulose. In Marchantia propagative organs called gemmae are formed and help in reproduction.
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Question 83 of 140
83. Question
Proskauer in the year 1957 classified Bryophytes into how many classes?
Correct
Proskauer in the year 1957 classified Bryophytes into 3 Classes namely i. Hepaticopsida ii. Anthocerotopsida iii. Bryopsida.
Incorrect
Proskauer in the year 1957 classified Bryophytes into 3 Classes namely i. Hepaticopsida ii. Anthocerotopsida iii. Bryopsida.
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Question 84 of 140
84. Question
Which among the following does not belong to class Hepaticopsida?
Correct
Hepaticopsida – Riccia, Marchantia, Porella and Riella.
Incorrect
Hepaticopsida – Riccia, Marchantia, Porella and Riella.
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Question 85 of 140
85. Question
Which among the following does not belong to class Bryopsida?
Correct
Funaria, Polytrichum and Sphagnum belong to class Bryospida ; Anthoceros and Dendroceros belong to class Hepaticopsida.
Incorrect
Funaria, Polytrichum and Sphagnum belong to class Bryospida ; Anthoceros and Dendroceros belong to class Hepaticopsida.
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Question 86 of 140
86. Question
Which among the following statement is incorrect regarding Economic importance of bryophytes
1) Dead thalli of Sphagnum gets accumulated and compressed, hardened to form peat. In northern Europe (Netherlands)peat is used as fuel in commercial scale. Apart from this nitrates, brown dye and tanning materials are derived from peat.
2) Sphagnum and peat are also used in horticulture as packing material because of their water holding capacity. Marchantia polymorpha is used to cure pulmonary tuberculosis. Sphagnum, Bryum and Polytrichum are used as food. Bryophytes play a major role in soil formation through succession and help in soil conservationCorrect
Incorrect
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Question 87 of 140
87. Question
Which are the vascular cryptogams and were abundant in the Devonian period of Palaeozoic era (400 million years ago)?
Correct
Pteridophytes are the vascular cryptogams and were abundant in the Devonian period of Palaeozoic era (400 million years ago).
Incorrect
Pteridophytes are the vascular cryptogams and were abundant in the Devonian period of Palaeozoic era (400 million years ago).
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Question 88 of 140
88. Question
Which among the following statement is correct regarding Pteridophytes?
1) we are aware of the salient features of amphibious plants called bryophytes. But there is a plant group called pteridophytes which are considered as first true land plants. Further, they were the first plants to acquire vascular tissue namely xylem and phloem, hence called vascular cryptogams.
2) Club moss, horsetails, quill worts, water ferns and tree ferns belong to this group. These plants are mostly small, herbaceous and grow well in moist, cool and shady places where water is available.
3) Plant body is sporophyte (n) and it is the variant phase. It is not differentiated into root, stem and leaves. Stele is protostele but in some forms siphonostele is present (Marsilea). Tracheids are the major nitrogen conducting elements but in Selaginella vessels are found.Correct
Plant body is sporophyte (2n) and it is the dominant phase. It is differentiated into root, stem and leaves. Roots are adventitious. Stem shows monopodial or dichotomous branching. Leaves may be microphyllous or megaphyllous. Stele is protostele but in some forms siphonostele is present (Marsilea) Tracheids are the major water conducting elements but in Selaginella vessels are found.
Incorrect
Plant body is sporophyte (2n) and it is the dominant phase. It is differentiated into root, stem and leaves. Roots are adventitious. Stem shows monopodial or dichotomous branching. Leaves may be microphyllous or megaphyllous. Stele is protostele but in some forms siphonostele is present (Marsilea) Tracheids are the major water conducting elements but in Selaginella vessels are found.
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Question 89 of 140
89. Question
Sporangia, spore bearing bag like structures are borne on special leaves called ___
Correct
Sporangia, spore bearing bag like structures are borne on special leaves called sporophyll. The Sporophylls get organized to form cone or strobilus. Example: Selaginella, Equisetum. They may be homosporous (produce one type of spores-Lycopodium) or Heterosporous (produce two types of spores-Selaginella). Heterospory is the origin for seed habit.
Incorrect
Sporangia, spore bearing bag like structures are borne on special leaves called sporophyll. The Sporophylls get organized to form cone or strobilus. Example: Selaginella, Equisetum. They may be homosporous (produce one type of spores-Lycopodium) or Heterosporous (produce two types of spores-Selaginella). Heterospory is the origin for seed habit.
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Question 90 of 140
90. Question
The success and dominance of vascular plants is due to the development of ____
Correct
The success and dominance of vascular plants is due to the development of • Extensive root system. • Efficient conducting tissues. • Cuticle to prevent desiccation. • Stomata for effective gaseous exchange.
Incorrect
The success and dominance of vascular plants is due to the development of • Extensive root system. • Efficient conducting tissues. • Cuticle to prevent desiccation. • Stomata for effective gaseous exchange.
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Question 91 of 140
91. Question
In pteridophytes the development of sporangium from group of initials is called ____
Correct
The development of sporangium from group of initials is called Eusporangiate.
Incorrect
The development of sporangium from group of initials is called Eusporangiate.
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Question 92 of 140
92. Question
The development of sporangium from single initial is called ____
Correct
The development of sporangium from single initial is called Leptosporangiate. Development of sporangia may be eusporangiate or leptosporangiate
Incorrect
The development of sporangium from single initial is called Leptosporangiate. Development of sporangia may be eusporangiate or leptosporangiate
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Question 93 of 140
93. Question
Which among the following statement is correct regarding pteridophytes
1) Spore mother cells undergo meiosis and produce spores (2n). Spore germinates to produce haploid, unicellular brown, spiral shaped independent gametophytes called prothallus. Fragmentation, resting buds, root tubers and adventitious buds help in asexual reproduction.
2) Sexual reproduction is oogamous. Sex organs, namely antheridium and archegonium are produced on the prothallus. Antheridium produces spirally coiled and multiflagellate antherozoids. Archegonium is flask shaped with broad venter and elongated narrow neck.
3) The venter possesses egg or ovum and neck contain neck canal cells. Water is essential for fertilization. After fertilization a diploid zygote is formed and undergoes mitotic division to form embryo. Pteridophytes show apogamy and apospory.Correct
Spore mother cells undergo meiosis and produce spores (n). Spore germinates to produce haploid, multicellular green, cordate shaped independent gametophytes called prothallus. Fragmentation, resting buds, root tubers and adventitious buds help in vegetative reproduction.
Incorrect
Spore mother cells undergo meiosis and produce spores (n). Spore germinates to produce haploid, multicellular green, cordate shaped independent gametophytes called prothallus. Fragmentation, resting buds, root tubers and adventitious buds help in vegetative reproduction.
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Question 94 of 140
94. Question
In classification of pteridophytes proposed by reamer, pteridophytes are classified into how many subdivisions?
Correct
Reimer (1954) proposed a classification for pteridophytes. In this classification, the pteridophytes are divided into five subdivisions. There are 19 orders and 48 families in the classification.
Incorrect
Reimer (1954) proposed a classification for pteridophytes. In this classification, the pteridophytes are divided into five subdivisions. There are 19 orders and 48 families in the classification.
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Question 95 of 140
95. Question
Which among the following is not the subdivision of pteridophytes?
Correct
The five subdivision of pteridophytes 1. Psilophytopsida 2. Psilotopsida 3. Lycopsida 4. Sphenopsida 5. Pteropsida.
Incorrect
The five subdivision of pteridophytes 1. Psilophytopsida 2. Psilotopsida 3. Lycopsida 4. Sphenopsida 5. Pteropsida.
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Question 96 of 140
96. Question
Which among the following term refers to the central cylinder of vascular tissues consisting of xylem, phloem, pericycle and sometimes medullary rays with pith?
Correct
The term stele refers to the central cylinder of vascular tissues consisting of xylem, phloem, pericycle and sometimes medullary rays with pith.
Incorrect
The term stele refers to the central cylinder of vascular tissues consisting of xylem, phloem, pericycle and sometimes medullary rays with pith.
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Question 97 of 140
97. Question
Which among the following is not the type of steles?
Correct
There are two types of steles 1. Protostele 2. Siphonostele.
Incorrect
There are two types of steles 1. Protostele 2. Siphonostele.
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Question 98 of 140
98. Question
Which among the following is not the type of Protostele?
Correct
In protostele phloem surrounds xylem. The type includes Haplostele, Actinostele, Plectostele, and Mixed protostele.
Incorrect
In protostele phloem surrounds xylem. The type includes Haplostele, Actinostele, Plectostele, and Mixed protostele.
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Question 99 of 140
99. Question
Which among the following is incorrect regarding Protostele
Correct
Star shaped xylem core is surrounded by phloem is known as actinostele.
Incorrect
Star shaped xylem core is surrounded by phloem is known as actinostele.
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Question 100 of 140
100. Question
Match the following Protostele with its example
i. Haplostele – 1. Lycopodium clavatum
ii. Actinostele – 2. Lycopodium serratum
iii. Plectostele – 3. Selaginella
iv. Mixed protostele – 4. Lycopodium cernuumCorrect
Haplostele (Selaginella), Actinostele (Lycopodium Serratum), Plectostele (Lycopodium clavatum) and Mixed Protostele (Lycopodium cernuum).
Incorrect
Haplostele (Selaginella), Actinostele (Lycopodium Serratum), Plectostele (Lycopodium clavatum) and Mixed Protostele (Lycopodium cernuum).
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Question 101 of 140
101. Question
In which among the following xylem is surrounded by phloem with pith at the centre?
Correct
In siphonostele xylem is surrounded by phloem with pith at the centre.
Incorrect
In siphonostele xylem is surrounded by phloem with pith at the centre.
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Question 102 of 140
102. Question
Which among the following is not included in Siphonostele?
Correct
Siphonostele includes Ectophloic siphonostele, Amphiphloic siphonostele, Solenostele, Eustele, Atactostele and Polycylic stele.
Incorrect
Siphonostele includes Ectophloic siphonostele, Amphiphloic siphonostele, Solenostele, Eustele, Atactostele and Polycylic stele.
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Question 103 of 140
103. Question
In which siphonostele the vascular tissues are present in the form of two or more concentric cylinders?
Correct
In Polycyclicstele vascular tissues are present in the form of two or more concentric cylinders.
Incorrect
In Polycyclicstele vascular tissues are present in the form of two or more concentric cylinders.
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Question 104 of 140
104. Question
Which among the following is incorrect regarding Siphonostele
Correct
Atactostele: The stele is split into distinct collateral vascular bundles and are scattered in the ground tissue.
Incorrect
Atactostele: The stele is split into distinct collateral vascular bundles and are scattered in the ground tissue.
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Question 105 of 140
105. Question
Match the following Siphonostele with its example
i. Ectophloic siphonostele – 1. Monocot stem
ii. Amphiphloic siphonostele – 2. Dicot stem
iii. Eustele – 3. Osmunda
iv. Atactostele – 4. Pteridium
v. Polycyclicstele – 5. MarsileaCorrect
Ectophloic siphonostele – Osmunda; Amphiphloic siphonostele – Marsilea; Eustele – Dicot stem; Atactostele – Monocot stem; Polycyclicstele – Pteridium.
Incorrect
Ectophloic siphonostele – Osmunda; Amphiphloic siphonostele – Marsilea; Eustele – Dicot stem; Atactostele – Monocot stem; Polycyclicstele – Pteridium.
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Question 106 of 140
106. Question
Which among the following is not the type of Solenostele?
Correct
In Solenostele, stele is perforated at a place or places corresponding the origin of the leaf trace. They are (a) Ectophloic solenostele, (b) Amphiphloic solenostele and (c) Dictyostele.
Incorrect
In Solenostele, stele is perforated at a place or places corresponding the origin of the leaf trace. They are (a) Ectophloic solenostele, (b) Amphiphloic solenostele and (c) Dictyostele.
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Question 107 of 140
107. Question
Which are naked seed producing plants, were dominant in the Jurassic and Cretaceous periods of Mesozoic era and members are distributed throughout the temperate and tropical region of the world?
Correct
Gymnosperm are naked seed producing plants. They were dominant in the Jurassic and Cretaceous periods of Mesozoic era. The members are distributed throughout the temperate and tropical region of the world.
Incorrect
Gymnosperm are naked seed producing plants. They were dominant in the Jurassic and Cretaceous periods of Mesozoic era. The members are distributed throughout the temperate and tropical region of the world.
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Question 108 of 140
108. Question
Which among the following is a plant secretion which is an efficient preservative that doesn’t get degraded and hence can preserve remains of extinct life forms?
Correct
Amber is a plant secretion which is an efficient preservative that doesn’t get degraded and hence can preserve remains of extinct life forms. The amber is produced by Pinites succinifera, a Gymnosperm.
Incorrect
Amber is a plant secretion which is an efficient preservative that doesn’t get degraded and hence can preserve remains of extinct life forms. The amber is produced by Pinites succinifera, a Gymnosperm.
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Question 109 of 140
109. Question
Which among the following statement is correct regarding Gymnosperm?
1) Most of the gymnosperms are evergreen, woody trees or shrubs. Some are lianas (Gnetum). The plant body is sporophyte and is differentiated into root, stem and leaves. A well-developed tap root system is present. Coralloid roots of Cycas have symbiotic association with blue green algae. In Pinus the roots have mycorrhizae.
2) The stem is aerial, erect and branched or unbranched (Cycas) with leaf scars. In conifers two types of branches namely branches of limited growth (Dwarf shoot) and Branches of unlimited growth (Long shoot) is present.
3) Leaves are dimorphic, foliage and scale leaves are present. Foliage leaves are green, photosynthetic and borne on branches of limited growth. They show xerophytic features. The xylem consists of tracheids but in Gnetum and Ephedra vessels are present. They are heterosporous. The plant may be monoecious (Pinus) or dioecious (Cycas)Correct
Incorrect
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Question 110 of 140
110. Question
Which among the following is incorrect regarding Gymnosperms resemble with angiosperms?
Correct
Presence of integument around the ovule. Both plant groups produce seeds.
Incorrect
Presence of integument around the ovule. Both plant groups produce seeds.
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Question 111 of 140
111. Question
Which among the following statement is correct regarding gymnosperm?
1) In gymnosperm Secondary growth is present. The wood may be Manoxylic (Porous, soft, more parenchyma with wide medullary ray -Cycas) or Pycnoxylic (compact with narrow medullary ray-Pinus).
2) Microsporangia and megasporangia are produced on microsporophyll and megasporophyll respectively. Male and female cones are absent. Anemophilous pollination is absent. Fertilization is siphonogamous and pollen tube helps in the transfer of female nuclei.
3) Polyembryony (presence of many embryo) is present. The naked ovule develops into seed. The endosperm is haploid and develop before fertilization. The life cycle shows alternation of generation. The sporophytic phase is dominant and gametophytic phase is highly reduced.Correct
Microsporangia and megasporangia are produced on microsporophyll and megasporophyll respectively. Male and female cones are produced. Anemophilous pollination is present. Fertilization is siphonogamous and pollen tube helps in the transfer of male nuclei.
Incorrect
Microsporangia and megasporangia are produced on microsporophyll and megasporophyll respectively. Male and female cones are produced. Anemophilous pollination is present. Fertilization is siphonogamous and pollen tube helps in the transfer of male nuclei.
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Question 112 of 140
112. Question
Sporne (1965) classified gymnosperms into how many classes?
Correct
Sporne (1965) classified gymnosperms into 3 classes, 9 orders and 31 families.
Incorrect
Sporne (1965) classified gymnosperms into 3 classes, 9 orders and 31 families.
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Question 113 of 140
113. Question
Which among the following is not the classes of gymnosperm?
Correct
The classes of gymnosperm include i) Cycadospsida ii) Coniferopsida iii) Gnetopsida.
Incorrect
The classes of gymnosperm include i) Cycadospsida ii) Coniferopsida iii) Gnetopsida.
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Question 114 of 140
114. Question
Which among the following statement is correct
1) In gymnosperm Vessels are present (except Gnetales). Phloem lacks companion cells, Ovules are naked and Wind pollination is maximum. Double fertilization is absent, Endosperm is haploid, Fruit formation is present and Flowers present.
2) In Angiosperm Vessels are present. Companion cells are present, Ovules are enclosed within the ovary, Insects, wind, water, animals etc., act as pollinating agents. Double fertilization is present, Endosperm is triploid, Fruit formation is present and Flowers present.Correct
In gymnosperm Vessels are absent (except Gnetales). Phloem lacks companion cells, Ovules are naked and Wind pollination only. Double fertilization is absent, Endosperm is haploid, Fruit formation is absent and Flowers absent.
Incorrect
In gymnosperm Vessels are absent (except Gnetales). Phloem lacks companion cells, Ovules are naked and Wind pollination only. Double fertilization is absent, Endosperm is haploid, Fruit formation is absent and Flowers absent.
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Question 115 of 140
115. Question
Match the following gymnosperm plants with its economic products?
i. Pinus gerardiana – 1. Resin (Canada balsam)
ii. Abies balsamea – 2. oil
iii. Pinus roxburghii – 3. wood
iv. Cedrus deodara – 4. Oleoresin
v. Cedrus atlantica – 5. Roasted seedCorrect
1. Pinus gerardiana – Roasted seed – Used as a food; 2. Abies balsamea – Resin (Canada balsam) – Used as mounting medium in permanent slide preparation; 3. Pinus roxburghii – Oleoresin – Used to make soap, varnishes and printing ink; 4. Cedrus deodara – wood – Used to make doors, boats and railway sleepers; 5. Cedrus atlantica – oil – Used in perfumery.
Incorrect
1. Pinus gerardiana – Roasted seed – Used as a food; 2. Abies balsamea – Resin (Canada balsam) – Used as mounting medium in permanent slide preparation; 3. Pinus roxburghii – Oleoresin – Used to make soap, varnishes and printing ink; 4. Cedrus deodara – wood – Used to make doors, boats and railway sleepers; 5. Cedrus atlantica – oil – Used in perfumery.
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Question 116 of 140
116. Question
Spermatophytes also include plants bearing ovules enclosed in a protective cover called ovary, such plants are called _____
Correct
Spermatophytes also include plants bearing ovules enclosed in a protective cover called ovary, such plants are called Angiosperms. They constitute major plant group of our earth and are adapted to the terrestrial mode of life. This group of plants appeared during the early cretaceous period (140 million years ago) and dominates the vegetation on a global scale.
Incorrect
Spermatophytes also include plants bearing ovules enclosed in a protective cover called ovary, such plants are called Angiosperms. They constitute major plant group of our earth and are adapted to the terrestrial mode of life. This group of plants appeared during the early cretaceous period (140 million years ago) and dominates the vegetation on a global scale.
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Question 117 of 140
117. Question
In Angiosperm which is the dominant phase?
Correct
In Angiosperm sporophyte is the dominant phase and gametophyte is highly reduced.
Incorrect
In Angiosperm sporophyte is the dominant phase and gametophyte is highly reduced.
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Question 118 of 140
118. Question
Which among the following salient feature of angiosperm is incorrect
Correct
Flowers are produced instead of cone. The Ovule remains enclosed in the ovary.
Incorrect
Flowers are produced instead of cone. The Ovule remains enclosed in the ovary.
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Question 119 of 140
119. Question
Which among the following is not the classification of Angiosperm?
Correct
Angiosperms are broadly classified into two classes namely Dicotyledons and Monocotyledons.
Incorrect
Angiosperms are broadly classified into two classes namely Dicotyledons and Monocotyledons.
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Question 120 of 140
120. Question
Which among the following gymnosperm plant does not produce sago, in which starch used as food?
Correct
Cycas circinalis, Cycas revoluta produce Sago, in which Starch used as food.
Incorrect
Cycas circinalis, Cycas revoluta produce Sago, in which Starch used as food.
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Question 121 of 140
121. Question
Which among the following morphological feature of Dicotyledons is incorrect
Correct
Reticulate venation is present in the leaves. Tricolpate (3 furrow) pollen is present
Incorrect
Reticulate venation is present in the leaves. Tricolpate (3 furrow) pollen is present
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Question 122 of 140
122. Question
Which among the following anatomical feature of Dicotyledons is incorrect
Correct
Incorrect
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Question 123 of 140
123. Question
Which among the following plant (Gymnosperm) does not produce Rosin and Turpentine used for Paper sizing and varnishes?
Correct
Pinus insularis, Pinus roxburghii produce Rosin and Turpentine used for Paper sizing and varnishes.
Incorrect
Pinus insularis, Pinus roxburghii produce Rosin and Turpentine used for Paper sizing and varnishes.
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Question 124 of 140
124. Question
Which among the following plant (Gymnosperm) produce Drug used for cancer treatment?
Correct
Taxus brevifolia produce Taxol (Drug) used for cancer treatment.
Incorrect
Taxus brevifolia produce Taxol (Drug) used for cancer treatment.
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Question 125 of 140
125. Question
Which among the following morphological feature of monocotyledons is incorrect
Correct
Presence of single cotyledon in the seed.
Incorrect
Presence of single cotyledon in the seed.
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Question 126 of 140
126. Question
Which among the following statement is incorrect regarding Anatomical features of Monocotyledons?
Correct
Secondary growth is absent in Monocotyledons.
Incorrect
Secondary growth is absent in Monocotyledons.
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Question 127 of 140
127. Question
Which among the following plant (Gymnosperm) is used for r the treatment of asthma, bronchititis?
Correct
Ephedra gerardiana produce Ephedrine used for the treatment of asthma, bronchititis.
Incorrect
Ephedra gerardiana produce Ephedrine used for the treatment of asthma, bronchititis.
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Question 128 of 140
128. Question
Which among the following plant (Gymnosperm) does not produce wood pulp Used to make papers?
Correct
Pinus roxburghii, Picea smithiana produce Wood pulp used to make papers.
Incorrect
Pinus roxburghii, Picea smithiana produce Wood pulp used to make papers.
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Question 129 of 140
129. Question
The National wood fossil park is situated in which district of Tamil Nadu?
Correct
The National wood fossil park is situated in Tiruvakkarai, a Village of Villupuram district of Tamil Nadu. The park contains petrified wood fossils approximately 20 million years old.
Incorrect
The National wood fossil park is situated in Tiruvakkarai, a Village of Villupuram district of Tamil Nadu. The park contains petrified wood fossils approximately 20 million years old.
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Question 130 of 140
130. Question
Which among the following fossil park is incorrectly matched with its state?
1) Shiwalik fossil park – Himachal Pradesh
2) Mandla Fossil park – Gujarat
3) Rajmahal Hills – AssamCorrect
Shiwalik fossil park-Himachal Pradesh, Mandla Fossil park-Madhya Pradesh, Rajmahal Hills–Jharkhand, Ariyalur – Tamilnadu are some of the fossil rich sites of India.
Incorrect
Shiwalik fossil park-Himachal Pradesh, Mandla Fossil park-Madhya Pradesh, Rajmahal Hills–Jharkhand, Ariyalur – Tamilnadu are some of the fossil rich sites of India.
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Question 131 of 140
131. Question
Which among the following plant (Gymnosperm) produce Tannins used for Bark yield tannins and is used in Leather industries?
Correct
Araucaria (Monkey’s puzzle), Picea and Phyllocladus are plat produce Tannins used as Bark yield tannins and is used in Leather industries.
Incorrect
Araucaria (Monkey’s puzzle), Picea and Phyllocladus are plat produce Tannins used as Bark yield tannins and is used in Leather industries.
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Question 132 of 140
132. Question
Which among the following is not the fossil algae?
Correct
Fossil Algae – Palaeoporella, Dimorphosiphon.
Incorrect
Fossil Algae – Palaeoporella, Dimorphosiphon.
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Question 133 of 140
133. Question
Which among the following is not the fossil bryophytes?
Correct
Fossil Bryophytes – Naiadita, Hepaticites, Muscites.
Incorrect
Fossil Bryophytes – Naiadita, Hepaticites, Muscites.
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Question 134 of 140
134. Question
Which among the following plant (Gymnosperm) is used as Ornamental plants/Floral Decoration?
Correct
Thuja, Cupressus, Araucaria, and Cryptomeria are plant used as Ornamental plants/Floral Decoration.
Incorrect
Thuja, Cupressus, Araucaria, and Cryptomeria are plant used as Ornamental plants/Floral Decoration.
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Question 135 of 140
135. Question
Which among the following is not Fossil Pteridophytes?
Correct
Fossil Pteridophytes – Cooksonia, Rhynia,, Baragwanthia, Calamites.
Incorrect
Fossil Pteridophytes – Cooksonia, Rhynia,, Baragwanthia, Calamites.
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Question 136 of 140
136. Question
Which among the following is not the fossil angiosperm?
Correct
Fossil Angiosperms – Archaeanthus, Furcula.
Incorrect
Fossil Angiosperms – Archaeanthus, Furcula.
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Question 137 of 140
137. Question
Which among the following is not the fossil gymnosperm?
Correct
Fossil Gymnosperms – Medullosa, Lepidocarpon, Williamsonia, Lepidodendron.
Incorrect
Fossil Gymnosperms – Medullosa, Lepidocarpon, Williamsonia, Lepidodendron.
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Question 138 of 140
138. Question
Which term is used to name the fossil plants because the whole plant is not recovered as fossils instead organs or parts of the extinct plants are obtained in fragments?
Correct
The term ‘form genera’ is used to name the fossil plants because the whole plant is not recovered as fossils instead organs or parts of the extinct plants are obtained in fragments.
Incorrect
The term ‘form genera’ is used to name the fossil plants because the whole plant is not recovered as fossils instead organs or parts of the extinct plants are obtained in fragments.
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Question 139 of 140
139. Question
Who is the father of Indian Palaeobotany?
Correct
Prof. Birbal Sahni (1891-1949) is Father of Indian Palaeobotany. He described Fossil plants from Rajmahal Hills of Eastern Bihar. Pentoxylon sahnii, Nipanioxylon are some of the form genera described by him.
Incorrect
Prof. Birbal Sahni (1891-1949) is Father of Indian Palaeobotany. He described Fossil plants from Rajmahal Hills of Eastern Bihar. Pentoxylon sahnii, Nipanioxylon are some of the form genera described by him.
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Question 140 of 140
140. Question
Birbal Sahni Institute of Palaebotany is located in _____
Correct
Birbal Sahni Institute of Palaebotany is located in Lucknow.
Incorrect
Birbal Sahni Institute of Palaebotany is located in Lucknow.
Leaderboard: Plant Kingdom 11th Science Lessons
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