First Year MBBS Examination
I MBBS Biochemistry Paper 1
Time: 3 hours
Max Marks: 50
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Date: 13-01-2010Instructions:
1. Answer to the points.
2. Figure to the right indicates marks.
3. Use separate answer books for each
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section.4. Draw diagrams wherever necessary.
5. Write legibly.
Section 1
1. Give an account of any TWO of the
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followinga) Mucopolysaccharides: structure an (
d 10)
functions. (A. 98) (C.22)
b) Functions of Phospholipids (A. 108)
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(C.34)c) Enzyme specificity. (A. 68) (C.95)
2. Write Short notes of (any three)
a) Methemoglobin (A. 344) (C.202)
(9)
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b) Respiratory acidosis (A. 405) (C. 482)c) Creatinine clearance test (A. 374)
(C.461)
d) Van Den Bergh's test (A. 359) (C.455)
e) Cori's cycle (A. 134) (C.261)
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3. Discuss Any TWOa) Blood buffers. (A. 398) (C.475)
(6)
b) Protein energy malnutrition (A. 516)
(C. 516)
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c) Antienzymes. (A. 63)Section 2
4. Write Short notes on (any two)
a) Glycolysis (A. 128) (C.245)
(10)
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b) B-oxidation of palmitic acid (A. 191)(C.287)
c) Competitive inhibition of enzymes with
example (A. 63) (C. 92)
5. Write Short notes on (any two)
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a) Oncogens (A. 661)(9)
b) Radioisotopes (A. 683) (C.717)
c) Uncouplers of oxidative
phosphorylation (A. 320) (C.233)
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d) Sickle cell hemoglobin (A. 345)(C.203)
e) 2.3. BPG cycle (A. 134) (C.251)
6. Give your comments with
justification of Any SIX
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a) What is invert sugar?(6)
b) Metabolic water.
c) Alkaline phosphatase helps in diagnosis
of jaundice.
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d) Acid number is an index of rancidity.
e) HDL is called as scavenger of
cholesterol.
f) Why cataract is a future of
galactosemia.
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g) Explain the action of lovastatin&mevastatin.
h) Role of SDA in balanced diet.