Download WBUHS MBBS 1st Year WBUHS Biochemistry Paper I 2012 Supplementary Question Paper

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The West Bengal University of Health Sciences

M.B.B.S. 1st Professional (Supplementary) Examination, 2012

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Subject: Biochemistry

Full Marks: 50

Time: 2½ hrs.

Use Separate answer script for each group

Attempt all questions. The figures in the margin indicate full marks

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Group - A

1. a) Classify the membrane proteins, Mention their functions. Explain the ion channels as a mode of transport across the plasma membrane. 3+3+6
   or
   b) Define redox potential. Explain its significance in electron transport chain with schematic diagram. Write the role of inhibitors of electron transport chain. 3+6+3

Group - B

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2. Answer any two of the following: 2x7
   1. Define isoenzymes. Write the clinical significance of serum isoenzymes in cardiac disorder.
   2. Write the structure and mechanism of action of insulin.
   3. Describe the digestion and absorption of triglycerides with diagram.

Group - C

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3. Write short notes on any four of the following
   1. Km value of enzymes.
   2. Structure and function of IgG.
   3. Cyclic AMP.
   4. Coenzymes.
   5. Glycosaminoglycans.

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Group - D

4. Explain the following statements: 4 x 3
   1. DNA denaturation is essential for DNA hybridization.
   2. Protein : Lipid ratio is maximum in inner mitochondrial membrane.
   3. Allopurinol is used for the treatment of hyperuricemia.

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   4. Multiple myeloma is an immunoglobulin related disorder.

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