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Posted Date: 18 Sep 2009 Posted By: palani Member Level: Bronze
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2008 Tamil Nadu State Barathidasan University B.Sc B.Sc Bio-Chemistry bio chemistry Question paper Question paper
PART A – (10 X 2 = 20 marks)
Answer ALL questions
All questions carry equal marks
Each answer should not exceed 50 words
1. What are high energy compounds? Name some of them.
2. Give the sequence of electron transport chain.
3. Why is RUBISCO an important protein on our planet?
4. Give the reactions for the conversion of CO2 to 3-PGA.
5. How does galatose enter glycolytic pathway?
6. Compute the energetics of aerobic glycolysis.
7. Give the irreversible reaction of TCA cycle.
8. What is the importance of Cori-cycle?
9. Give the reaction catalyzed by PD-complex.
10. How is lactose synthesized?
PART B – (5 X 6 = 30 marks)
Answer ALL questions
All questions carry equal marks
Each answer should not exceed 250 words
11. (a) Explain the Chemios motic hypothesis of ATP synthesis.
Or
(b) Write on Malate/glycerol phosphate shuttle.
12. (a) Write the reactions involved in Hatch-Slack cycle.
Or
(b) Write a note on Bioluminescence.
13. (a) What is gluconeogenesis? Give the reactions involved.
Or
(b) Explain the role of liver in the maintenance of blood sugar level.
14. (a) Write on the metabolism of fructose.
Or
(b) How are Glycoproteins synthesized?
15. (a) Explain the interconversion of protein and carbohydrate.
Or
(b) Write on the interconversion of protein and fatty acids.
PART C – (5 X 10 = 50 marks)
Answer ALL questions
Each answer should not exceed 500 words.
16. (a) How is organization of electron transport chain established?
Or
(b) Explain the Mitochondrial transport system.
17. (a) Discuss the Non-cyclic photo-phosphorylation.
Or
(b) Explain the reactions and significance of photorespiration.
18. (a) How is glycogen mobilized? Explain its regulation.
Or
(b) How is glucose converted to Lactate? Give all the reactions of this pathway.
19. (a) Explain the biosynthesis of Bacterial cell wall polysaccharides.
Or
(b) Give the individual reactions of TCA cycle. How is this pathway regulated?
20. (a) Explain the role of TCA cycle in the interconversion of fuel molecules.
Or
(b) Discuss the metabolic profile of some of the organs.
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