LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
M.Sc. DEGREE EXAMINATION - FOOD CHEMISTRY & FOOD PROCESSING
SECOND SEMESTER – APRIL 2012
FP 2801 - NUTRITIONAL BIOCHEMISTRY
Date : 19-04-2012
Time : 9:00 - 12:00
Dept. No.
Max. : 100 Marks
Part A
Answer all the questions:
(10x2=20)
1. What is the role of NADH dehydrogenase in electron transfer reaction?
2. Mention the purpose of uncoupler in electron transport chain.
3. Write the components that are involved in the synthesis of acetyl coenzyme A.
4. What would be the decarboxylated product of pyruvate in glycolysis? Mention the structure.
5. Define glycosuria.
6. What are ketone bodies? When and how are they formed in the body?
7. Calculate the energitics for palmitic acid oxidation.
8. List the possible enzymes that are involved in DNA replication.
9. Define Homeostasis.
10. Name the enzymes responsible for regulating the water balance in our system.
Part-B
Answer any eight questions:
(8x5=40)
11. Discuss complex II of electron transfer reaction.
12. Elaborate the role of NADPH in metabolic reactions. Explain the pathway in which it is obtained.
13. Explain urea cycle with its regulation.
14. Explain the role of RNA polymerase in prokaryotes.
15. What are the possible ways in which amino acids are oxidized? Mention any two reactions with
structure.
16. What do you understand by oxidative phosphorylation? Mention the role of subunits involved in
complex V
17. Explain the process of glycogenolysis in detail.
18. Elaborate on the process of translation elongation.
19. What are the possible inborn errors of amino acid metabolism? Explain phenyl ketonuria in detail.
20. Explain the Henderson - Hasselbach equation of pH.
21. Enumerate the importance of water and its physiological functions.
22. Explain the role of Renin-Angiotensin complex in maintaining homeostasis.
PART-C
Answer any four questions:
(4x 10=40)
23. Explain the various components involved in electron transfer reaction.
24. Enumerate schematically the biosynthesis of saturated fatty acids.
25. Explain glycolysis with its regulation.
26. Mention the sequential steps involved in DNA replication.
27. Discuss in detail the renal mechanism of maintaining acid-base balance.
28. Describe in detail the Beta Oxidative pathway of fatty acid metabolism with the bioenergetics.
**********