0819E379
First Year MBBS Examination
I MBBS Biochemistry Paper 2
Time: 3 hours
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Max Marks: 501. Answer to the points.
2. Figure to the right indicates marks.
3. Use separate answer books for each
section.
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4. Draw diagrams wherever necessary.5. Write legibly.
Section 1
1. Give an account of any TWO of the
following
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(10)a) Biochemical functions and deficiency
symptoms of vitamin C.(A.481)(C.132)
b) Serum calcium homeostasis (A. 493)
(C. 407)
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c) Biologically important compoundsformed from glycine(A.268)(C.342)
2. Write Short notes of (any three)
(9)
a) Oncogenes (A. 664) (C.687)
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b) Replication of DNA (A. 559) (C.524)c) Formation of uric acid (A. 547)
(C.392)
d) Denaturation of proteins (A. 44) (C.61)
e) Lac operon model (A. 596)(C.567)
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3. Discuss Any TWO(6)
a) Pellagra (A. 470) (C.141)
b) Dietary fiber (A. 514) (. 508)
c) Basal metabolic rate (A. 512) (C.504)
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Section 24. Write Short notes on (any two)
(10)
a) Genetic code (A. 580) (C.551)
b) Proteolytic enzymes (A. 252) (C.170)
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c) Metabolic role of methionine (A. 272)(C.358)
5. Write Short notes on (any two)
(9)
a) Bence Jones protein (A. 378, 651)
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(C.189)b) Lesch-Nyhan syndrome (A. 549)
(C.396)
c) Calorific value (A. 511) (C.503)
d) Metabolic role of copper and zinc (A.
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503, 504) (C.416,419)e) Biochemical role of vitamin K (A. 461)
(C.130)
6. Give your comments with justification
of Any SIX
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(6)a) Anion gap refers to unmeasured anions
in plasma.
b) Reverse transcriptase inhibitors are
used to treat HIV infection.
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c) Folic acid should not be administered invitamin B12 deficiency.
d) Penicillamine is used in the treatment
of Wilson's disease.
e) Tryptophan metabolism leads to the
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formation of NAD in the body.f) FIGLU excretion test is used to detect
folic acid deficiency.
g) Bilirubin is made water soluble by
conjugation.
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h) Methanol poisoning can be alleviated
by ethanol.