NCERT Class 11 Chapter 3 Biology Plant Kingdom MCQ

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1. Floridean starch is found in

A. Rhodophyceae

B. Chlorophyceae

C. Phaeophyceae

D. Cyanophyceae

2. Peat moss is another name of

A. Sphagnum

B. Riccia

C. Marchantia

D. Dryopteris

3. Pteridophytes differ from mosses/bryophytes in possessing

A. well developed vascular system

B. independent gametophyte

C. archegonia structure

D. flagellate spermatozoids

4. Most plants are green in colour because

A. chlorophyll is least effective in absorbing green light.

B. green light allows maximum photosynthesis

C. green light is the most effective wavelength region of the visible spectrum in sunlight for photosynthesis.

D. the atmosphere filters out all the colours of the visible light spectrum except green.

5. In Chlorophyceae, sexual reproduction occurs by

A. isogamy, anisogamy and oogamy

B. oogamy only

C. anisogamy and oogamy

D. isogamy and anisogamy

6. A water fern which is used as a green manure in rice fields is

A. Azolla

B. Mucor

C. Salvinia

D. Aspergillus

7. The largest flower found is known as

A. Rafflesia

B. Musa

C. Cauliflower

D. Tecoma

8. In fern, spores are formed in

A. sporangium

B. archegonium

C. oogonium

D. stomium

9. Laminaria (kelp) and Fucus (rock weed) are the examples of

A. brown algae

B. green algae

C. golden-brown algae

D. red algae

10. People recovering from long illness are often advised to include the alga Spirulina in their diet because it

A. is rich in proteins

B. has antibiotic properties

C. restores the intestinal microflora

D. makes the food easy to digest

11. Which of the following cell organelle remains enveloped by a single unit membrane?

A. Lysosomes

B. Chloroplast

C. Mitochondria

D. Nucleus

12. Algae have cell wall made up of

A. cellulose, galactans and mannans

B. hemicellulose, pectins and proteins

C. pectins, cellulose and proteins

D. cellulose, hemicellulose and pectins

13. Which plays an important role in the dispersal of spores in Funaria?

A. Peristome and annulus

B. Sporogonium

C. Capsule

D. Operculum

14. Which one of the following is a correct statement ?

A. Origin of seed habit can be traced in pteridophytes

B. Antheridiophores and archegoniophores are present in pteridophytes

C. In gymnosperms female gametophyte is free-living

D. None of these

15. What is the similarity between gymnosperms and angiosperms ?

A. Both have leaves, stem and roots

B. Origin of ovule and seed is similar in both

C. Endosperm is formed before fertilization in both

D. Phloem of both have companian cells

16. In Chlorophyceae, sexual reproduction occurs by

A. isogamy, anisogamy and oogamy

B. oogamy only

C. anisogamy and oogamy

D. isogamy and anisogamy

17. In gymnosperms, the ovule is naked because

A. ovary wall is absent

B. perianth is absent

C. integuments are absent

D. nucellus is absent

18. How many meiotic division would be required to produce 101 female gametophytes in an angiosperm?

A. 101

B. 127

C. 26

D. None of these

19. Which one of the following is the major difference between mosses and ferns ?

A. Sporophytes of ferns live much longer as compared to the sporophytes of mosses.

B. Vascular bundles of ferns show xylem vessels while those of mosses lack it

C. Mosses are facultative aerobes while ferns are obligate aerobes.

D. Ferns lack alternation of generation while mosses show the same.

20. In sexual life cycle of Agaricus, dikaryotization (n + n) is brought about by

A. Fusion of vegetative cells of different genotypes

B. Somatogamy between basidiospores

C. Fusion of motile gametes

D. Fusion of male and female sex organs

21. In Pinus/gymnosperms, the haploid structure are

A. megaspore, endosperm and embryo

B. megaspore, pollen grain and endosperm

C. megaspore, integument and root

D. pollen grain, leaf and root

22. Sperms of both Funaria and Pteris were released together near the archegonia of Pteris.Only Pteris sperms enter the archegonia as

A. Pteris archegonia repel Funaria sperms

B. Funaria sperms get killed by Pteris sperms

C. Funaria sperms are less mobile

D. Pteris archegonia release chemical to attract its sperms

23. Evolutionary important character of Selaginella is

A. heterosporous nature

B. rhizophore

C. strobili

D. ligule

24. Moss peristome takes part in

A. spore dispersal

B. photosynthesis

C. protection

D. absorption

25. Apophysis in the capsule of Funaria is

A. lower part

B. upper part

C. middle part

D. fertile part