M.Sc. DEGREE EXAMINATION, APRIL 2017
Second Semester
Botany
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2016 onwards)
Time 3 Hours Maximum 75 Marks
Part A (10 x 2 20)
Answer all questions.
All questions carry equal marks.
1. Diffusion
2. Thylakoid
3. Nitrigen assimilation
4. Role of Laxakinase in glycolysis
5. Growth Regulators
6. Florigen
7. Catalyst
8. Km and Vmax
9. Zwitter ion
10. Alkaloids
Sub. Code
525203
RW-195
2
Wk ser
Part B x 5 25)
Answer all questions.
All questions carry equal marks.
11. Write short notes on photosynthetic pigments and
their functions.
Or
Briefly outline chlorophyll biosynthesis.
12. Comment on Glycolysis.
Or
Enumerate the inhibitors of electron transport
system.
13. Write short note on Biological Clock.
Or
Briefly describe senescence and aging.
14. Describe the mechanism of enzyme action.
Or
Give the structure of a simple carbohydrate.
15. Write notes on plant waxes.
Or
Briefly describe the tertiary structure of protein.
Part C x 10 30)
Answer any three questions.
16. Explain photophosphorylation in detail.
17. Describe TCA cycle.
RW-195
3
Wk ser
18. Give an account on classification of carbohydrates.
19. Discuss the mode of action of any two plant growth
regulators and their effect.
20. Describe the primary and secondary structure of a
protein.
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