NCERT-Based Subjective Questions
Very Short Answer Questions (1–15)
1. Define microsporogenesis.
2. What is the role of tapetum in anther development?
3. What are microspores?
4. Define pollen viability and state one factor affecting it.
5. What is megasporogenesis?
6. What is an embryo sac?
7. Name the most common type of embryo sac in angiosperms.
8. What is double fertilization?
9. Define pollination.
10. What is autogamy?
11. Define xenogamy.
12. What is apomixis?
13. What is parthenocarpy?
14. Name the female gamete in flowering plants.
15. What is the function of the micropyle?
Short Answer Questions (16–30)
16. Describe the structure of a typical anther.
17. Explain the process of microsporogenesis.
18. Describe the structure of a pollen grain.
19. Explain the development of male gametophyte.
20. Describe megasporogenesis in flowering plants.
21. Explain the structure of a typical embryo sac.
22. Differentiate between self-pollination and cross-pollination (any three points).
23. Explain different agents of pollination with examples.
24. Describe adaptations in flowers for wind pollination.
25. What is pollen-pistil interaction? Explain briefly.
26. Describe the events of fertilization in flowering plants.
27. Explain double fertilization with its two fusion events.
28. Describe the post-fertilization changes in a flower.
29. Explain the development of seed from ovule.
30. Describe the formation of fruit from ovary.
Long Answer Questions (31–45)
31. Describe the structure and functions of different layers of the anther wall.
32. Explain the stages of pollen development from microspore mother cell to mature pollen grain.
33. Describe the structure of pollen grain and explain the significance of exine.
34. Explain the development of male gametophyte in detail.
35. Describe the process of megasporogenesis and development of female gametophyte.
36. Explain the 7-celled, 8-nucleate structure of the embryo sac.
37. Describe different types of pollination and their significance.
38. Explain structural and functional adaptations in flowers for insect pollination.
39. Describe the mechanism of pollen-pistil interaction and compatibility.
40. Explain the process and significance of double fertilization.
41. Describe the development and role of endosperm.
42. Explain the development of embryo after fertilization.
43. Describe seed formation and structure of a mature seed.
44. Explain fruit development and types of fruits.
45. Discuss apomixis and its importance in crop improvement.
Higher Order Thinking Questions (46–50)
46. Why is double fertilization considered an evolutionary advantage in flowering plants?
47. How does self-incompatibility prevent inbreeding? Explain its importance.
48. A plant produces large quantities of pollen but shows low fertilization success. Analyze possible reasons.
49. Explain how floral structure determines the type of pollination with suitable examples.
50. Evaluate the importance of pollinators in agriculture and ecosystem stability.