M.Sc. DEGREE EXAMINATION, NOVEMBER 2017
First Semester
Biochemistry
PLANT BIOCHEMISTRY
(CBCS 2014 onwards)
Time 3 Hours Maximum 75 Marks
Part A (10 x 2 20)
Answer all questions.
1. Define Ascent of sap.
2. What are plastids?
3. What are macronutrients?
4. Write the functions of Nitrogen.
5. Draw the structure of chlorophyll.
6. What is phosphorescence?
7. What are Phytohormones?
8. Give the role of anthocyanin.
9. What are short day plants?
10. What is senescence?
Sub. Code
4MBC1C4
AFF-4932
2
Ws3
Part B 5 25)
Answer all questions.
11. Explain about the biosynthesis of cell wall.
Or
Write the structure and functions of Mitochondria.
12. Write in detail about the functions and deficiency
symptoms of any two micronutrients.
Or
Explain about the Nitrogen cycle.
13. Explain the structure and functions of Chloroplast.
Or
Describe about the Crassulacean acid metabolism.
14. Explain the structure and mode of action of Auxin.
Or
Write short note on storage carbohydrates.
15. Briefly explain the Responses of plant to pathogen.
Or
Give an account of biochemistry of fruit ripening.
Part C 10 30)
Answer any three of the following questions.
16. Elaborate the translocation of xylem and phloem.
17. Write an essay on the importance of plant nutrition.
AFF-4932
3
Ws3
18. Describe about C3 cycle.
19. Discuss the structure, biosynthesis and economic
importance of terpenoids.
20. Explain the mechanism of pathogenesis.
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