B.Sc. Botany (Subsidiary), Part-II
Paper-II
Time: 3.00 Hrs. Full Marks: 80
Answer any Five questions. All questions carry equal marks.
1. What is secondary growth in plants? Describe anomalous secondary growth in Boerhaavia stem.
2. Describe different stages of mitosis with suitable diagrams.
3. Describe structure and functions of mitochondria.
4. Describe the process of double fertilization in angiosperms.
5. Describe physical and chemical structure of DNA.
6. Describe Kreb's cycle.
7. What is pollution? Write an essay on pollution.
8. Name any five timber fielding plants (Botanical names and family).
9. What is food chain? Describe any food chain studied by you, mentioning the trophic level.
10. Give botanical names and family of the following:
Fruit yielding plants (Four) Oil yielding plants (Four)