Plant Kingdom Book Back Questions 8th Science Lesson 17

8th Science Lesson 17

17] Plant Kingdom

Book Back Questions with Answer and Do You Know Box Content

Do You Know?

The branch of study of fungus is called mycology.

Claviceps purpuriya is the hallucinogenic fungi which causes greatest damages to the frustrated youth by giving unreal, extraordinary lightness and hovering sensations. Aspergillus species cause allegy to children while cladosporium protects against allergy.

Fungi are placed as third kingdom in R.H. Witterkar’s five kingdom of classification because of absence of chlorophyll and starch. Penicillin is known as queen of medicine. It was discovered by Sir. Alexander Fleming in 1928.

Lycopodium, is known as club moss. Equisetum is known as horse tail.

Herbarium is the collection of pressed, dried plants pasted on a sheet and arranged according to any one of the accepted systems of classification.

Largest herbarium of India is in Kolkata, which has more than 10,00,000 (one million) species of herbarium specimens.

The rules and recommendations regarding binomial nomenclature were found in ICBN (nternational code of Botanical Nomenclature). Now it is known as ICN (International Code of Nomenclature).

Choose the best answers:

1. Solanum trilobattum is the binomial name of Thoothuvalai. The word “Solanum” refers to

(a) Species

(b) Genus

(c) Class

(d) Orders

2 Floridian starch is a reserve food material of

(a) Chloroplyceae

(b) Phaeophyceae

(c) Rhodophyceae

(d) Cyanophyceae

3. An example for colonial form of algae is

(a) Oscillatoria

(b) Nostac

(c) Volvox

(d) Chlorella

4. One of the following is an edible mushroom

(a) Polyporus

(b) Agaricus

(c) Pennicillium

(d) Aspergillus

5. Plants that prevent soil erosion are

(a) Algae

(b) Fungi

(c) Bryophytes

(d) Pteridophytes

6. The first land plants are

(a) Bryophytes

(b) Pteridophytes

(c) Gymnosperm

(d) Angiosperm

7. The well-developed sporophytic plants body is seen in

(a) Bryophytes

(b) Pteridophytes

(c) Gymnosperms

(d) Angiosperms

8. Binominal nomenclature was first introduced in the year

(a) 1970

(b) 1975

(c) 1978

(d) 1623

9. Penicillin is an antibiotic which is extracted from

(a) Algae

(b) Fungi

(c) Bryophytes

(d) Pteridophytes

Fill in the blanks:

1. The word “taconomy” is derived from _________

2. Binominal nomenclature was first introduced by ______________

3. The book “genera Plantarum” was published by __________

4. Monocotyledon seed bears only ___________ cotyledon.

5. Brown algae belongs to ________ class.

6. Agar is obtained from _________ algae.

7. The reserve food material of fungi are __________ and ______________

8. The first true land plants is ____________

9. Xylem and phloem are absent in _______ plants.

10. Reticulate venation is present in ____________ plants.

State true or false. If false, correct the statement:

1. In polypetalae, the petals are free.

2. Binomial name should contain more than two words.

3. Artificial system of classification is based on a few characters of the plants.

4. Cell wall of fungi is made up of chitin.

5. Pinus is a closed seeded plants.

6. All bryophytes are hydrophytes.

7. Dicotyledons have well developed characters than the gymnosperms.

8. Mosses are the well developed plant in bryophytes.

9. The dominant phase of the bryophytes is sporophyte.

10. The dominant phase of the pteridophyte is gametophytic phase.

Match the following:

Cyanophyceae – Green Algae

Cyanophyceae – Blue green algae

Chlorophyceae – Red algae

Rhodophyceae – Brown algae

Answers:

Choose the best answers:

1. Genus 2. Rhodophyceae 3. Volvox 4. Agaricus 5. Bryophytes 6. Bryophytes 7. gymnosperms 8. 1623 9. Fungi

Fill in the blanks:

1. Greek 2. Gaspard Bauhin 3. Bentham and Hooker 4. One 5. Phaeophyceae

6. Red 7. Glycogen, oil 8. Pteridophyte 9. Bryophyte 10. Dicot

State true or false. If false, correct the statement:

1.True

2.False

Correct answer: Binomial name should contain two words

3.False

Correct answer: Artificial system of classification is based on a Morphological characters of the plants

4.True

5.False

Correct answer: Pinus is an open seeded plant

6.False

Correct answer: All bryophytes are amphibians

7.False

Correct answer: Monocotyledons have well developed characters than the Dicotyledons

8.True

9.False

Correct answer: The dominant phase of the bryophytes is Gametophyte

10. False

Correct answer: The dominant phase of the pteridophyte is gametophytic phase of bryophyte.

Match the following:

1.Cyanophyceae – Bluegreen algae

2.Chlorophyceae – Green algae

3.Phaeophyceae – Brown algae

4.Rhodophyceae- Red algae