Download ABVMU MBBS 1st Year 2024 March Biochemistry Paper I MCQs Question Paper

ATAL BIHARI VAJPAYEE MEDICAL UNIVERSITY, LUCKNOW
MBBS DEGREE EXAMINATION - 1st PROF PROFESSIONAL
SUPPLEMENTARY EXAM - MARCH 2024
BIOCHEMISTRY - PAPER ? I
SECTION A - Multiple Choice Questions (MCQs)

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PAPER CODE: 2421130003 SET: B
Note: Choose one correct answer in the OMR sheet provided. No overwriting
should be done.

Time: 20 Minutes (20 x 1 = 20 MARKS)

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1. In mammals, the major fat in adipose tissues is
a) Cholesterol
b) Phospholipid
c) Triacylglycerol
d) Sphingolipids

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2. G-proteins act as
a) Hormone receptors
b) Hormone carriers
c) Signal transducers
d) Second messengers

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3. Vitamin required in conversion of folic acid to folinic acid is
a) Cobalamin
b) Biotin

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c) Niacin
d) Ascorbic acid

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4. Enterokinase is involved in activation of
a) Trypsinogen
b) Pepsinogen
c) Chymotrypsinogen
d) Pro-elastase

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5. Dietary fats after absorption appear in the circulation as
a) VLDL
b) HDL
c) Chylomicron
d) LDL

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6. Which of the following is a substrate for aldolase activity in Glycolytic
pathway?
a) Glucose-6-p
b) Glyceraldehyde-3-p
c) Fructose-1,6-bisphosphate

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d) Fructose-6-p
7. Depression of respiratory centre by use of overdose of anaesthetics may
cause
a) Respiratory alkalosis
b) Respiratory acidosis

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c) Metabolic alkalosis

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d) Metabolic acidosis
8. Which organ cannot utilize fatty acids
a) Adipose tissue
b) Brain

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c) Skeletal muscles
d) Liver
9. Triglycerides are
a) Major constituents of membranes
b) Heavier than water

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c) Hydrophilic
d) Non-polar
10. The sites for gluconeogenesis are
a) Skin and pancreas
b) Liver and kidney

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c) Intestine and lens of eye
d) Lung and brain
11. Carpal tunnel syndrome may occur if there is deficiency of
a) Folic acid
b) B12

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c) Niacin
d) B6

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12. The vitamin which would most likely become deficient in an individual who
develop a completely carnivorous life style
a) Niacin

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b) Thiamin
c) Cobalamin
d) Vitamin C
13. Glycogen is present in all body tissues except
a) Brain

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b) Liver
c) Stomach
d) Kidney
14. Which one of the following compounds cannot give rise to the net synthesis
of Glucose?

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a) -ketoglutarate
b) Lactate
c) Acetyl CoA
d) Glycerol
15. Substrate for synthesis of Eicosanoids is

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a) Oleic acid
b) Arachidonic acid
c) Palmitic acid
d) Linolenic acid
16. Example of an extracellular enzyme is

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a) Cytochrome oxidase
b) Lactate dehydrogenase
c) Hexokinase
d) Pancreatic lipase
17. Which of the following enzyme is not involved in HMP shunt?

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a) Glucose-6-p-dehydrogenase
b) Glyceraldehyde-3-p dehydrogenase
c) Phosphogluconate dehydrogenase
d) Transketolase
18. Poor source of iron is

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a) Meat
b) Milk
c) Kidney
d) Liver
19. Dietary deficiency of thiamin inhibits the activity of the enzyme:

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a) Pyruvate dehydrogenase
b) Pyruvate kinase
c) Enolase
d) Phosphofructokinase
20. Insulin stimulates

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a) Hepatic glycogenesis
b) Hepatic glycogenolysis

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c) Gluconeogenesis
d) Lipolysis
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