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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