Download MBBS 1st Year 2009 Feb 524055 Biochemistry I Question Paper

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[KU 504]

FEBRUARY 2009

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Sub. Code: 4055

FIRST M.B.B.S. DEGREE EXAMINATION

Revised (Non-Semester) Regulations

PAPER V - BIOCHEMISTRY - I

Q. P. Code: 524055

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Time: Three hours

Maximum: 100 Marks

Answer ALL questions

I. Essay Questions : (2 x 15 = 30)

1. Sources & fate of acetyl CoA, Explain the denovo synthesis of cholesterol and its regulation.

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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.

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4. Insulin.
5. Wald's visual cycle.
6. Collagen.
7. Glycosaminoglycons (GAGS).
8. Chromatography.

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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.

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3. Lipid peroxidation.
4. Zymogens.
5. BMR.
6. Normal levels of :
   1. B.U.N
   2. Fasting Serum Glucose

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   3. LDH
   4. ALT
7. t: RNA
8. Vitamin K

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9. Limiting amino acid.
10. Isoenzymes.

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