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Writer's pictureVikas Yadav

Important MCQs from Chapter Plant Kingdom | Class 12 | CBSE Board

MCQs: Plant Kingdom (Class 12, CBSE)

 

 1. Which of the following is not a characteristic of algae?

a) Photosynthetic 

b) Non-vascular 

c) Presence of flowers 

d) Aquatic 

 

 2. Which group of plants is known as the "amphibians of the plant kingdom"?

a) Algae 

b) Bryophytes 

c) Gymnosperms 

d) Angiosperms 

 

 3. The dominant phase in the life cycle of bryophytes is:

a) Sporophyte 

b) Gametophyte 

c) Diploid 

d) Haploid 

 

 4. What is the main difference between gymnosperms and angiosperms?

a) Presence of seeds 

b) Presence of flowers 

c) Vascular tissue 

d) Photosynthesis 

 

 5. In which group of plants do you find double fertilization?

a) Algae 

b) Bryophytes 

c) Pteridophytes 

d) Angiosperms 

 

 6. Which type of life cycle is observed in pteridophytes?

a) Haplontic 

b) Diplontic 

c) Haplodiplontic 

d) None of the above 

 

 7. The structure that helps in the absorption of water in bryophytes is:

a) Roots 

b) Rhizoids 

c) Leaves 

d) Stems 

 

 8. Which of the following is a non-vascular plant?

a) Fern 

b) Moss 

c) Pine 

d) Rose 

 

 9. The term 'gymnosperm' literally means:

a) Naked seeds 

b) Covered seeds 

c) Flowering plants 

d) Non-flowering plants 

 

 10. Angiosperms are characterized by the presence of:

a) Cones 

b) Flowers 

c) Spores 

d) None of the above 

 

 11. The thalloid plant body is a characteristic feature of:

a) Algae 

b) Bryophytes 

c) Pteridophytes 

d) Gymnosperms 

 

 12. Which pigment is primarily responsible for the green color in plants?

a) Carotene 

b) Xanthophyll 

c) Chlorophyll 

d) Anthocyanin 

 

 13. Which division of the plant kingdom does the liverwort belong to?

a) Algae 

b) Bryophyta 

c) Pteridophyta 

d) Gymnosperms 

 

 14. What is the main function of xylem in vascular plants?

a) Transport of water and minerals 

b) Transport of food 

c) Photosynthesis 

d) Reproduction 

 

 15. The term ‘alternation of generations’ refers to:

a) Alternating between vegetative and reproductive phases 

b) Alternating between diploid and haploid phases 

c) Alternating between male and female phases 

d) Alternating between seed and spore phases 

 

 16. Which plant group is known to produce spores instead of seeds?

a) Gymnosperms 

b) Angiosperms 

c) Pteridophytes 

d) Bryophytes 

 

 17. A plant that has seeds but does not produce flowers or fruits is called a:

a) Bryophyte 

b) Pteridophyte 

c) Gymnosperm 

d) Angiosperm 

 

 18. The part of the plant that gives rise to a new sporophyte is:

a) Spore 

b) Gametophyte 

c) Zygote 

d) Embryo 

 

 19. Which group of plants has a vascular system but does not produce seeds?

a) Bryophytes 

b) Gymnosperms 

c) Angiosperms 

d) Pteridophytes 

 

 20. The diploid phase of the plant life cycle is known as:

a) Gametophyte 

b) Sporophyte 

c) Haploid 

d) Thallus 

 

 21. In which division are fern plants categorized?

a) Bryophyta 

b) Pteridophyta 

c) Gymnosperms 

d) Angiosperms 

 

 22. Which of the following is a characteristic feature of gymnosperms?

a) Enclosed seeds 

b) Fruit formation 

c) Cone-bearing 

d) Presence of flowers 

 

 23. The process by which a zygote develops into a new organism is known as:

a) Germination 

b) Sporulation 

c) Embryogenesis 

d) Fertilization 

 

 24. The main difference between liverworts and mosses is:

a) Presence of flowers 

b) Type of chlorophyll 

c) Presence of thallus 

d) Vascular tissue 

 

 25. In mosses, the sporophyte is:

a) Free-living 

b) Dependent on the gametophyte 

c) Independent of the gametophyte 

d) None of the above 

 

 26. Which of the following is true for seed plants?

a) They all produce flowers 

b) They all produce fruits 

c) They all produce spores 

d) They all have a vascular system 

 

 27. Algae can be classified based on:

a) Habitat 

b) Type of pigments 

c) Both a and b 

d) None of the above 

 

 28. Which part of the plant is primarily involved in photosynthesis?

a) Stem 

b) Roots 

c) Leaves 

d) Flowers 

 

 29. Which of the following is not a type of gymnosperm?

a) Pine 

b) Cycas 

c) Ginkgo 

d) Rose 

 

 30. The primary photosynthetic pigment in cyanobacteria is:

a) Chlorophyll a 

b) Phycocyanin  

c) Carotenoid 

d) Xanthophyll 

 

 31. In angiosperms, the ovule develops into:

a) Fruit 

b) Seed 

c) Flower 

d) Cone 

 

 32. The process of forming male gametes in plants is known as:

a) Oogenesis 

b) Spermatogenesis 

c) Gametogenesis 

d) Sporogenesis 

 

 33. Which plant group does not have true roots, stems, or leaves?

a) Angiosperms 

b) Pteridophytes 

c) Bryophytes 

d) Gymnosperms 

 

 34. In which plant group are stomata first observed?

a) Algae 

b) Bryophytes 

c) Pteridophytes 

d) Gymnosperms 

 

 35. Which type of plant has a dominant gametophyte stage?

a) Algae 

b) Bryophytes 

c) Pteridophytes 

d) Angiosperms 

 

 36. Gymnosperms and angiosperms are together called:

a) Thallophytes 

b) Spermatophytes 

c) Pteridophytes 

d) Bryophytes 

 

 37. Which of the following is not a bryophyte?

a) Moss 

b) Liverwort 

c) Hornwort 

d) Cycas 

 

 38. Which of the following is a characteristic of gymnosperm leaves?

a) Broad and flat 

b) Needle-like 

c) Compound 

d) Pinnate 

 

 39. Which of the following is a seedless vascular plant?

a) Pine 

b) Fern 

c) Rose 

d) Mango 

 

 40. The term 'phanerogams' refers to:

a) Seed-producing plants 

b) Spore-producing plants 

c) Non-vascular plants 

d) Thallus 

 

 41. Which part of a plant is responsible for producing seeds in angiosperms?

a) Root 

b) Stem 

c) Flower 

d) Leaf 

 

 42. Which group of plants has a dominant sporophyte generation?

a) Algae 

b) Bryophytes 

c) Pteridophytes 

d) Gymnosperms 

 

 43. Which of the following is not a characteristic of angiosperms?

a) Presence of flowers 

b) Double fertilization 

c) Naked seeds 

d) Fruit formation 

 

 44. Which plant group is the largest among the plant kingdom?

a) Bryophytes 

b) Pteridophytes 

c) Gymnosperms 

d) Angiosperms 

 

 45. The transfer of pollen grains from anther to stigma is called:

a) Fertilization 

b) Pollination 

c) Germination 

d) Sporulation 

 

 46. In pteridophytes, the dominant phase is:

a) Gametophyte 

b) Sporophyte 

c) Thallus 

d) Zygote 

 

 47. Which of the following plants shows heterospory?

a) Ferns 

b) Mosses 

c) Pines 

d) Liverworts 

 

 48. The process by which seeds remain inactive until conditions are favorable is called:

a) Dormancy 

b) Germination 

c) Fertilization 

d) Pollination 

 

49. The reproductive structure in gymnosperms is called:

a) Flower 

b) Fruit 

c) Cone 

d) Spore 

 

 50. The part of the plant that helps in gas exchange is:

a) Roots 

b) Leaves 

c) Stems 

d) Flowers 

 

 Answers:

 

1. c) Presence of flowers 

2. b) Bryophytes 

3. b) Gametophyte 

4. b) Presence of flowers 

5. d) Angiosperms 

6. c) Haplodiplontic 

7. b) Rhizoids 

8. b) Moss 

9. a) Naked seeds 

10. b) Flowers 

11. b) Bryophytes 

12. c) Chlorophyll 

13. b) Bryophyta 

14. a) Transport of water and minerals 

15. b) Alternating between diploid and haploid phases 

16. c) Pteridophytes 

17. c) Gymnosperm 

18. c) Zygote 

19. d) Pteridophytes 

20. b) Sporophyte 

21. b) Pteridophyta 

22. c) Cone-bearing 

23. c) Embryogenesis 

24. c) Presence of thallus 

25. b) Dependent on the gametophyte 

26. d) They all have a vascular system 

27. c) Both a and b 

28. c) Leaves 

29. d) Rose 

30. a) Chlorophyll a 

31. b) Seed 

32. b) Spermatogenesis 

33. c) Bryophytes 

34. b) Bryophytes 

35. b) Bryophytes 

36. b) Spermatophytes 

37. d) Cycas 

38. b) Needle-like 

39. b) Fern 

40. a) Seed-producing plants 

41. c) Flower 

42. d) Gymnosperms 

43. c) Naked seeds 

44. d) Angiosperms 

45. b) Pollination 

46. b) Sporophyte 

47. c) Pines 

48. a) Dormancy 

49. c) Cone 

50. b) Leaves 

 

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