Plant Kingdom MCQ Biology Class Eleven

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Plant Kingdom MCQ/Objective questions Chapter 3 Biology Class 11

 

1. Blue-green alga belongs to the group:

    • a. Plantae.
    • b. Animalia.
    • c. Algae.
  • d. Cyanobacteria.
Answer
  • d. Cyanobacteria.
Explanation
Cyanobacteria are the photosynthetic bacteria. So, though algae belongs plant kingdom, blue-green algae are not among them.

2. Plant kingdom comprises:

  • a. Algae.
  • b. Bryophytes and pteridophytes.
  • c. Angiosperms and gymnosperms.
  • d. All.
Answer
  • d. All.
Explanation
Plant kingdom comprise of all these five groups.

3. “Artificial classification” by Linnaeus was not accurate because:

  • a. It gave equal weightage to vegetative as well as the sexual mode of reproduction.
  • b. It was primarily based upon superficial morphological character like color, shape, and number of leaves.
  • c. It did not consider internal structure like anatomy, embryology, phytochemistry.
  • d. All.
Answer
  • d. All.

4. Why vegetative mode of reproduction does not weigh equally to the sexual mode of reproduction.

  • a. Vegetative propagation is common in the plant kingdom.
  • b. Vegetative reproduction is not so complicated, like sexual reproduction.
  • c. Environmental factors easily alter vegetative characters.
  • d. None.
Answer
  • c. Environmental factors easily alter vegetative characters.

5. Classification of the flowering plant by Bentham and Hooker is:

  • a. Natural classification.
  • b. Artificial classification.
  • c. None.
Answer
  • a. Natural classification.

6. Phylogenetic classification seeks:

  • a. The similarity in sexual mode of reproduction.
  • b. The similarity in the asexual mode of reproduction.
  • c. Evolutionary relationship among organisms.
  • d. None.
Answer
  • c. Evolutionary relationship among organisms.

7. The cytological classification relies on cytological information like:

  • a. Chromosome number.
  • b. Chromosome structure.
  • c. Chromosome behavior.
  • d. All.
Answer
  • d. All.
Explanation
Chromsome structure, numbser and behaviour helps scintists  classify organism. This  is cytological classification.

8. Chemotaxonomy uses to find the relationship in organisms:

  • a. Chemical constituents.
  • b. Reaction with chemical reagents.
  • c. The affinity of plants towards some chemicals.
  • d. None.
Answer
  • a. Chemical constituents.

9. Chlorophyll containing organelle of algae is:

  • a. Chloroplast.
  • b. Plastid.
  • c. Thalloid.
  • d. Chromoplast.
Answer
  • c. Thalloid.

10.

11. Algae reproduce :

  • a. By fragmentation.
  • b. Asexually by zoospore formation.
  • c. Sexually.
  • d. None.
Answer
  • b. Asexually by zoospore formation.

12. Which among these is an alga?

  • a. Volvox.
  • b. Ulothrix.
  • c. Spirogyra.
  • d. All.
Answer
  • d. All.

13. The biggest carbon dioxide fixator on earth is?

  • a. Plants other than alga.
  • b. Algae.
  • c. Cyanobacteria.
  • d. None.
Answer
  • b. Algae.
Explanation
Algae fixes more than half of the total carbon dioxide.

14. Edible algae is:

  • a. Laminaria.
  • b. Porphyra.
  • c. Sargassum.
  • d. All.
Answer
  • d. All.
Explanation
Algae has many usage.Some are edible. These ere the examples of edible alga.

15. Hydrocolloid forming alga is:

  • a. Algin (Brown alga).
  • b. Carrageen (red alga).
  • c. Sargassum.
  • d. a and b.
Answer
  • d. a and b.

16. Chemical laboratories obtain agar from which alga:

  • a. Algin (Brown alga).
  • b. Carrageen (red alga).
  • c. Sargassum.
  • d. Gelidium.
Answer
  • d. Gelidium.

17. We classify alga based on :

  • a. Colour.
  • b. Type of spore formation.
  • c. Morphology.
  • d. All above..
Answer
  • d. All above..
 Plant kingdom mcq

18. Bryophytes include:

  • a. Liverworts.
  • b. Mosses.
  • c. Both a and b.
  • d. Spirogyra.
Answer
  • c. Both a and b.

19. Amphibians of the plant kingdom are:

  • a. Algae.
  • b. Bryophytes.
  • c. Pteridophytes.
  • d. Gymnosperms.
Answer
  • b. Bryophytes.
Explanation
Bryophytes live on soil but need water to disperse gametes produced during sexual reproduction

20. Following plants plays an important role in plant succession:

  • a. Algae.
  • b. Bryophytes.
  • c. Pteridophytes.
  • d. Gymnosperms.
Answer
  • a. Algae.
Explanation
Plant succession is a change in flora of a particular area. Bryophyte can grow on barren rock. They break rocks into soil. The newly formed soil now harbors new plants

21. feature of Bryophytes among these are:

  • a. Thalloid body with base.
  • b. Lack of roots, stems, and leaves.
  • c. Prominent haploid generation.
  • d. All.
Answer
  • d. All.

22. Vascular tissues in plants (xylem and phloem) first appear  in:

  • a. Bryophytes.
  • b. Pteridophytes.
  • c. Gymnosperms.
  • d. Angiosperms.
Answer
  • b. Pteridophytes.

23. feature of pteridophytes among these are:

  • a. Prominent diploid generation (sporophyte).
  • b. Roots, stems, and leaves.
  • c. Prominent haploid generation.
  • d. All.
Answer
  • d. All.

24. Examples of Pteridophytes are:

  • a. Ferns.
  • b. Selaginella.
  • c. Equisetum.
  • d. All.
Answer
  • d. All.
Answer

25. Meaning of gymnosperm is:

  • a. Full seed.
  • b. Naked seed.
  • c. Hidden seed.
  • d. Round seed.
Answer
  • b. Naked seed.
Explanation
In gymnosperm the ovule does not contain ovary wall. So, the seed formed after fertilization is naked.

26. Gymnosperms among these are

  • a. Conifer.
  • b. Pinus.
  • c. Cedar.
  • d. All.
Answer
  • d. All.

27. Plant group that has mostly ornamental plants are:

  • a. Pteridophytes.
  • b. Gymnosperms.
  • c. Angiosperms.
  • d. None.
Answer
  • b. Gymnosperms.

28. Flowering plants belong to:

  • a. Pteridophytes.
  • b. Gymnosperms.
  • c. Angiosperms.
  • d. None.
Answer
  • c. Angiosperms.
Explanation
Unlike of gymnosperms, in angiosperms pollens and ovules are enclosed by a structure called flower.

29. Prominent stage in angiosperm is:

  • a. Independent sporophyte generation.
  • b. Dependent gametophyte generation.
  • c. Both.
  • d. None.
Answer
  • a. Independent sporophyte generation.
 Next:

Answers:

1. d 9. c 17. d 25. b
2. d 10 18. c 26. d
3. d 11. b 19. b 27. b
4. c 12. d 20. a 28. c
5. a 13. b 21. d 29. a
6. c 14. d 22. b
7. d 15. d 23. d
8. a 16. d 24. d

 

Plant Kingdom MCQ/Objective questions Chapter 3 Biology Class 11

 

Ref: Chapter 3, NCERT.

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