Biology Practice: Seed Structure and Germination (Mock Test 3 - Advanced)
1. During the process of Imbibition, what is the primary cause of the seed coat bursting?
2. In "Epigeal" germination of a bean seed, why does the hypocotyl form a curved "hook" while emerging?
3. What is the biochemical role of the "Scutellum" during the germination of a Maize grain?
4. Why do Mangrove seeds (Vivipary) germinate while still attached to the mother plant?
5. During germination, what is the fate of the "Primary Endosperm" in a non-albuminous seed like Pea?
6. Which physiological change occurs when a seed enters "Dormancy"?
7. The "Coleorhiza" is a protective sheath that is specifically found in:
8. In "Hypogeal" germination, why does the epicotyl elongate faster than the hypocotyl?
9. What happens to the dry weight of a seed during the first few days of germination (before leaves appear)?
10. The formation of the "Aleurone Layer" in monocots is triggered by which hormone?
11. In the "Castor" seed, the white fleshy outgrowth near the micropyle is called:
12. Why is "Water" considered the most important agent for starting germination?
13. In "Epigeal" germination of Castor, the cotyledons eventually:
14. The "Micropyle" serves a dual purpose: first during fertilization and second during germination for:
15. A seed is found to have a fused pericarp and testa. This structure is correctly called a:
16. What is the chromosomal ploidy of the "Endosperm" in Angiosperms?
17. In the "Viviparous" germination of Rhizophora, the seedling drops into the mud because:
18. Which of the following describes "Albuminous" seeds correctly?
19. If a seed is sown too deep in the soil, it may fail to germinate because:
20. The first part of the embryonic axis to become active and emerge is the:
