LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
M.Sc. DEGREE EXAMINATION – ZOOLOGY
SECOND SEMESTER – April 2009
UF 27
ZO 2816 / 2810 - BIOCHEMISTRY
Date & Time: 24/04/2009 / 1:00 - 4:00
Dept. No.
Max. : 100 Marks
SECTION-A
ANSWER ALL THE QUESTIONS:
(10 X 2=20 Marks)
1. What is metalloenzyme? Give example.
2. Comment on Amphipathic lipids.
3. What is denaturation of protein?
4. List out the inhibitors of electron transport chain.
5. Write the importance of LDL and HDL .
6. Differentiate saturated from unsaturated fatty acids with examples.
7. What is isoelectric point?
8. What are essential and non-essential amino acids?
9. Define the term rancidification.
10. Comment on antioxidant.
SECTION-B
ANSWER ANY FOUR QUESTIONS
(4 X 10=40 Marks)
11. Write short notes on the biosynthesis of purines.
12. What are co-enzymes? Enumerate the factors affecting enzyme activity.
13. Describe the structure and functions of phospholipids.
14. Give an account on the process of cholesterol biosynthesis.
15. Explain electron transport chain.
16. Describe the process of catabolism of amino acids.
SECTION-C
ANSWER ANY TWO QUESTIONS
(2 X 20=40 Marks)
17. What is enzyme kinetics? Bring out Michalis-Menton equation.
18. Discuss in detail the structure and classification of proteins.
19. Write essay on the biochemistry of cellular transport across membranes.
20. Describe in detail the classification of carbohydrates with their structure.
*********