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Thursday, January 7, 2016

FIRST M.B.B.S.,2009 Question Paper,Dr. MGR University Question Paper,Paper V – BIOCHEMISTRY – I

Dr. MGR University Question Paper
FIRST M.B.B.S. DEGREE EXAMINATION
Revised (Non-Semester) Regulations
Paper V – BIOCHEMISTRY – I
Q. P. Code : 524055
Time : Three hours Maximum: 100 Marks
Answer ALL questions.
Draw Suitable diagrams wherever necessary
I. Essay Questions : (2 x 15 = 30)
 1. Sources & fate of acetyl CoA, Explain the denovo synthesis of cholesterol and
 its regulation.
 2. Explain how pyruvate enters the Kreb’s citric acid cycle for oxidation.
 How many ATPs are produced in this pathway.
II. Write Short notes on : (10 x 5 = 50)
1. Write a note an chemiosmotic theory.
2. Active transport.
3. Uronic acid pathway.
4. Insulin.
5. Wald’s visual cycle.
6. Collagen.
7. Glycosaminoglycons (GAGS).
8. Chromatography.
9. Levels of organization of proteins.
 10. Calcium Homeostasis.
III. Short Answer Questions : (10 x 2 = 20)
1. Key enzymes of glycolysis.
2. Fatty liver.
3. Lipid peroxidation.
4. Zymogens.
5. BMR.
6. Normal levels of : i) B.U.N ii) Fasting Serum Glucose iii) LDH iv) ALT
7. t : RNA
8. Vitamin K
9. Limiting amino acid.
 10. Isoenzymes.
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