Madras University (UnOM) 2006 B.Sc Biotechnology Plant Physiology - Question Paper

Plant Physiology

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. Apoplast.
2. Entropy.
3. Lock and key hypothesis.
4. Emerson's Enhancement effect.
5. R Q.
6. Reductive amination.
7. A B A.
8. Phytochrome.
9. Florigen.
10. Vernalin.
11. Diffusion.
12. Root pressure.

part - B [5 x six = Marks 30]

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

13. Write notes on any 2 latest concepts on stomatal movement.

14. Bring out the relationship ranging from entropy and free energy change.

15. Write notes on Allosteric enzymes.

16. discuss photorespiration.

17. Write notes on Hatch and Slack Pathway.

18. explain the role of

a. Cytokinins in leaf senescence.

b. Abscisic acid in abscission.

19. Write notes on dormancy of seeds.

part - C [5 x six = Marks 30]

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

20. discuss the mechanism of water absorption inplants.

21. Classifl enzymes. explain their mode of action. elaborate the factors that affect enzyme activity.

22. Trace the path of carbon in C3 plants.

23. define the mechanism of aerobic respiration in plants.

24. provide an account of biological nitrogen fixation.

25. elaborate growthregulating substances? discuss the role of auxins and gibberellins in the growth of plants

Earning:   Approval pending.