RUHS
First Year MBBS Examination
I MBBS BIOCHEMISTRY PAPER I
Date: 04-10-2020
Time: 3

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hours
Max Marks: 50
Instructions: INSTRUCTIONS: 1. Que. No.1
and 5 in section A and B are compulsory.
Attempt ANY TWO questions from rest of the

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questions in each section. 2. Use separate
answer sheet for each section.
Section 1
1. Describe in detail the pathway of glycolysis
and its energetic. Explain the various enzyme

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inhibitors of glycolytic pathway. (10)
2. Discuss:2x4 = 8 (8)
a. Ketone bodies
b. Competitive inhibition (A.94)
3. Discuss: 2x4 = 8 (8)

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a. Biochemical role of vitamin D (A. 127)
b. Coenzyme functions of pyridoxine and

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riboflavin
4. Explain:4x2 =8 (8)
a. Glycosylated hemoglobin

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b. GOUT
c. Structure of insulin
d. Electron transport chain
Section 2
1. Describe :2x4=8 (8)

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a. Dietary fibers (A.507)
b. Glycogen storage diseases. (A.269)
2. Explain:2x4 = 8 (8)
a. Zinc-biochemical role and deficiency
disorders

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b. Essential amino acids
3. Discuss: 2x4=8 (8)
a. Free radicals and their scavenging
b. Functions of phospholipids
4. Write shorts notes on: 4x2 = 8 (8)

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a. Phenylketonuria (A.352)
b. Reverse cholesterol transport
c. Products of tyrosine metabolism
d. Bile pigments
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