Download NTRUHS MD/ MS PG 2013 Nov Question Papers Paper III 150 NR Biochemistry

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150-NR

M.D. DEGREE EXAMINATION — OCTOBER, 2013

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BIOCHEMISTRY

Paper-III : Hormones and Nutrition

Time: 3 Hours Max. Marks:100

Note: Answer all questions

All questions carry equal marks

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WRITE SHORT ESSAYS ON THE FOLLOWING:

1. Why vitamin K is called antihemorrhagic factor?
2. Vitamin D is classified as hormone. Explain.
3. Describe biochemical role of anti-oxidant vitamins.
4. Enumerate five enzymes which require zinc for their catalytic activity.

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5. Phosphatidylinositol as a second messenger for hormone action.
6. Explain why folate and Vitamin B12 deficiency leads to megaloblastic anaemia.
7. Insulin receptor.
8. Biochemical changes in Kwashiorkor and Marasmus.
9. Two functions and two deficiency manifestations of Copper and Iodine.

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10. Three biochemical functions of androgens and estrogens.