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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
M.Sc. DEGREE EXAMINATION - FOOD CHEMISTRY & FOOD PROCESSING
SECOND SEMESTER – APRIL 2013
FP 2801 - NUTRITIONAL BIOCHEMISTRY
Date : 26/04/2013
Time : 9:00 - 12:00
Dept. No.
Max. : 100 Marks
Part A
Answer ALL THE questions:
(10X2 =20) marks
1.
2.
3.
4.
5.
List the possible inborn errors of carbohydrate metabolism.
Define glycolysis.
Mention the site of electron transport reactions. what is the role of complex II of ETC.
What are essential amino acids?
Define β oxidation. How many number of ATP molecules are produced on complete oxidation of
one molecule of palmitate?
6. What is the role of topoisomerases
topoisomerase in DNA replication?
7. Define osmolarity.
8. List the types of RNA. What is the role of mRNA in transcription process?
9. Mention the role of NADPH in fatty acid biosynthesis.
10. Write the structure of cholesterol.
Part B
Answer ANY EIGHT questions:
(8 x 5 = 40) marks
11. Explain complex III of electron transport chain.
12. Describe the role of proton pump present in the mitochondrial membrane.
13. Explain glycogenesis.
14. Briefly discuss bicarbonate buffer systems.
15. Describe the prokaryotic termination process
proce in DNA replication
16. Explain pentose phosphate pathway
17. Explain the energtics of TCA cycle.
18. Write a note on amino acid deamination.What is the fate of ammonia formed in the system?
19. What are ketone bodies? When and how are they formed ?
20. What is metabolic acidosis?
21. Briefly discuss blood buffers.
22. Discuss the enzymes involved in initiation of DNA replication.
Part C
Answer ANY FOUR questions:
23. Write a detailed account on mitochondrial electron transport.
24. Describe the citric acid cycle and its regulation.
25. Explain glycogenolysis with its hormonal regulation
26. Explain the role of lungs in regulating acid base balance.
27. Explain prokaryotic translation process.
28. Explain cholesterol biosynthesis.
(4x 10=40) marks