Selected Qs - Plant Kingdom - NCERT Exemplar Converted to MCQs

1. Which spores are produced by algae under unfavorable conditions and contain stored food?

1.	Zoospores	2.	Aplanospores
3.	Hypnospores	4.	Autospores

2. The characteristic red color of red algae is due to the presence of:
1. Phycocyanin
2. Phycoerythrin
3. Fucoxanthin
4. Chlorophyll-d

3. Which of these algae is commercially important as a source of agar?
1. Gracilaria
2. Chlorella
3. Spirulina
4. Dunaliella

4. Peat formation occurs through:

1.	Decomposition of plant material under aerobic conditions
2.	Partial decomposition of plant material under anaerobic conditions
3.	Complete decomposition of algae under water
4.	Fossilization of woody plants

5. Which of the following is the storage food material in brown algae (Phaeophyceae)?
1. Floridean starch
2. Mannitol and laminarin
3. Starch
4. Glycogen

6. Which organism represents a haplontic life cycle?
1. Fucus
2. Polysiphonia
3. Spirogyra
4. Ectocarpus

7. An example of an organism with haplo-diplontic life cycle is:
1. Chlamydomonas
2. Fucus
3. Polysiphonia
4. Ulothrix

8. Rhizoids in lower plants are analogous to:

1.	Stems in higher plants
2.	Leaves in higher plants
3.	Roots in higher plants
4.	Flowers in higher plants

9. Which of these algae shows diplontic life cycle?
1. Ulothrix
2. Fucus
3. Chlamydomonas
4. Spirogyra

10. The male and female sex organs in bryophytes are:

1.	Antheridia and archegonia
2.	Antherozoids and eggs
3.	Testis and ovary
4.	Stamen and pistil

11. Which pigment gives brown algae their characteristic color?
1. Chlorophyll a
2. Phycoerythrin
3. Fucoxanthin
4. Phycocyanin

12. The main food storage product in red algae is:
1. Mannitol
2. Laminarin
3. Floridean starch
4. Regular starch

13. Which structure in bryophytes produces biflagellate antherozoids?
1. Archegonium
2. Antheridium
3. Sporophyte
4. Gemma cup

14. The plant body in bryophytes that produces gametes is:
1. Sporophyte
2. Gametophyte
3. Protonema
4. Calyptra

15. Green algae are placed in class:
1. Rhodophyceae
2. Phaeophyceae
3. Chlorophyceae
4. Cyanophyceae

16. Which of these is NOT a characteristic of Rhodophyceae?
1. Presence of phycoerythrin
2. Mostly marine habitat
3. Motile gametes
4. Non-motile spores

17. The dominant phase in the life cycle of bryophytes is:
1. Sporophyte
2. Gametophyte
3. Both equally dominant
4. Neither phase is dominant

18. Asexual reproduction in liverworts occurs through:
1. Seeds
2. Spores
3. Gemmae
4. Zoospores

19. Which group of plants first developed vascular tissue?
1. Algae
2. Bryophytes
3. Pteridophytes
4. Gymnosperms

20. Bryophytes are called amphibians of the plant kingdom because:

1.	They can survive both in water and on land
2.	They need water only for reproduction but can grow on land
3.	They evolved from aquatic ancestors
4.	They show alternation of generations

21. Which evolutionary advancement is seen in pteridophytes compared to bryophytes?

1.	Presence of vascular tissues
2.	Presence of seeds
3.	Presence of flowers
4.	Independent gametophyte

22. The significance of heterospory in plant evolution is:

1.	It led to development of flowers
2.	It led to development of seeds
3.	It led to development of fruits
4.	It led to development of vessels

23. Which feature of Selaginella shows advancement towards seed habit?

1.	Presence of homospores
2.	Presence of heterospores
3.	Presence of flowers
4.	Presence of fruits

24. Why is Cycas called a 'relic of the past'?

1.	It is extinct now
2.	It shows both primitive and advanced characters
3.	It is the oldest living gymnosperm
4.	It represents few surviving members of an ancient group

25. The precursor to seed habit in heterosporous pteridophytes is:

1.	Development of vascular tissues
2.	Retention of megaspore within megasporangium for variable periods
3.	Production of flowers
4.	Formation of fruits

26. The prothallus of a fern is:

1.	Diploid and dependent
2.	Haploid and independent
3.	Diploid and independent
4.	Haploid and dependent

27. In gymnosperms, the female gametophyte is:

1.	Independent and photosynthetic
2.	Dependent and photosynthetic
3.	Retained within megasporangium
4.	Free-living

28. Mycorrhiza is found in:
1. Selaginella
2. Pinus
3. Marchantia
4. Ulothrix

29. Corolloid roots are characteristic of:
1. Pinus
2. Cycas
3. Ginkgo
4. Ephedra

30. What is the main difference between gametophytes of pteridophytes and gymnosperms?

1.	Pteridophyte gametophytes are free-living while gymnosperm gametophytes are dependent
2.	Pteridophyte gametophytes are dependent while gymnosperm gametophytes are free-living
3.	Both are free-living
4.	Both are dependent

31. Which of these represents the most advanced evolutionary feature?

1.	Homospory	2.	Heterospory
3.	Seed habit	4.	Vascular tissues

32. In bryophytes, the gametophyte is the dominant phase because:

1.	It produces spores through meiosis
2.	It is photosynthetic and lives independently
3.	It depends on the sporophyte for nutrition
4.	It produces only asexual spores

33. Which of the following correctly describes the haplo-diplontic life cycle?

1.	Only haploid phase exists
2.	Only diploid phase exists
3.	Both haploid and diploid phases alternate with haploid being dominant
4.	Both being multicellular haploid and diploid phases alternate with equal dominance

34. In bryophytes, the sporophyte is:

1.	Completely independent
2.	Partially dependent on gametophyte
3.	Completely dependent on gametophyte
4.	Free-living when mature

35. Which structure in liverworts is specifically involved in asexual reproduction?
1. Rhizoids
2. Gemmae
3. Thallus
4. Archegonium

36. The protonema in mosses develops from:
1. Zygote
2. Gemma
3. Spore
4. Egg cell

37. The characteristic feature of bryophytes that makes them 'amphibians of plant kingdom' is:

1.	Presence of vascular tissue
2.	Dependence on water for sexual reproduction
3.	Ability to grow in water
4.	Presence of chlorophyll

38. In a liverwort thallus, gemma cups contain:
1. Asexual reproductive bodies
2. Sexual reproductive bodies
3. Spores
4. Gametes

39. Which type of spore is produced by algae under favorable conditions?
1. Zoospores
2. Aplanospores
3. Hypnospores
4. Akinetes

40. Which type of spore is produced by algae under unfavorable conditions for perennation?
1. Zoospores
2. Aplanospores
3. Hypnospores and Akinetes
4. Gametes

41. The characteristic pigment responsible for red color in red algae is:
1. Chlorophyll
2. Phycoerythrin
3. Phycocyanin
4. Fucoxanthin

42. The characteristic pigment responsible for brown color in brown algae is:
1. Chlorophyll
2. Phycoerythrin
3. Phycocyanin
4. Fucoxanthin

43. Which algae is commercially used as food?
1. Chlorella
2. Spirulina
3. Porphyra (Nori)
4. All of the above

44. The fern prothallus is:

1.	Diploid and represents the sporophyte generation
2.	Haploid and represents the gametophyte generation
3.	Diploid and represents the gametophyte generation
4.	Haploid and represents the sporophyte generation

45. The nature of fern prothallus is:

1.	Free-living and photosynthetic
2.	Parasitic on sporophyte
3.	Underground and non-photosynthetic
4.	Attached to parent plant

46. In the life cycle of ferns, the prothallus:
1. Produces spores
2. Produces gametes
3. Produces seeds
4. Produces fruits

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