Madras University (UnOM) 2006 B.Sc Biotechnology Envionmental Science and Phytogeography - Question Paper

Envionmental Science and Phytogeography

Max: three hrs
Total: 100 marks

part - A [10 x three = Marks 30]

ans any TEN ques..All ques. carry equal marks.

every ans should not exceed 50 words.Draw diagrams wherever necessary.

1. Hydrosere.
2. Food web
3. Energy pyramid.
4. Endemism.
5. Seed bank.
6. Insitu conservation.
7. Vivipary.
8. PCR technique.
9. Influence of fire on vegetation.
10. Allopatric diversity.
11. Epiphytes.
12. Ozone.

part - B [5 x six = Marks 30]

ans any 5 ques.. every ans should not exceed 200 words.

13. Write notes on the effect of temperature on Plant life.

14. explain the different anatomical adaptations met within hydrophytes.

15. Write notes on grassland ecosystem.

16. Write notes on Afforestation.

17. elaborate the ways in which man is affected by air pollution.

18. Write notes on Scrub jungle vegetation.

19. Write notes on epiphytes.

part - C [4 x 10 =Marks 40]

ans any 4 ques.. every ans should not exceed 500 words.

20. elaborate the effects of biological factors on plant life.

21. What is an ecosystem? discuss the different Components of an ecosystem.

22. Write an essay on Xerosere.

23. discuss water pollution.

24. define the different characteristic feature of mangrove vegetation.

25. Write an essay on Biodiversity.

Earning:   Approval pending.