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[MBBS 0824] AUGUST 2024 Sub. Code : 6055
M.B.B.S. DEGREE EXAMINATION
(For the candidates admitted from the Academic Year 2020 -2021 Onwards)
FIRST YEAR ? (CBME)
PAPER I ? BIOCHEMISTRY
Q.P. Code: 526055
Time: 20 Minutes
Maximum : 20 Marks
Answer All Questions
Choose one correct answer in the box provided in the Answer Script.
No overwriting should be done. Choice should be given in Capital Letters.
III. Multiple Choice Questions:
(20 x 1 = 20)
1. The marker enzyme of Golgi complex is
A) Glucose-6-phosphatase B) Galactosyl Transferase
C) Lactate Dehydrogenase D) Cathepsin
2. Metabolic function of Lysosome includes
A) Biosynthesis of proteins B) Drug metabolism
C) Degradation of proteins D) Ethanol oxidation
3. Example for Bond specificity of enzymes is
A) Urease B) Trypsin C) Hexokinase D) Lactate Dehydrogenase
4. The mucopolysaccharide that does not contain any Uronic Acid is
A) Heparin B) Hyaluronic acid C) Chondroitin sulphate D) Keratan sulphate
5. Apoenzymes of Pyruvate Dehydrogenase Complex include all, EXCEPT
A) Pyruvate Dehydrogenase B) Isocitrate Dehydrogenase
C) Dihydrolipoyl Transacetylase D) Dihydrolipoyl Dehydrogenase
6. Von Gierke's disease is due to deficiency of
A) Debranching enzyme B) Branching enzyme
C) Glucose-6-phosphatase D) Liver Phosphorylase
7. All of the following mucopolysaccharidosis present with corneal opacity, EXCEPT
A) Hurler's B) Hunter's C) Morquio's D) Scheie's
8. During fasting state, all of the following changes occur in adipose tissue, EXCEPT
A) Lipogenesis activated
B) Lipolysis increased
C) Hormone sensitive lipase activated
D) Free fatty acids increased in the blood
9. Action of Thromboxane include
A) Increased cyclic AMP level B) Vasoconstriction
C) Relaxation of bronchioles D) Inhibition of platelet aggregation
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10. Deficiency of Alpha Galactosidase leads to
A) Gaucher's disease B) Niemann Pick's disease
C) Fabry's disease D) Krabbe's leukodystrophy
11. In mitochondria, Creatine Kinase is present
A) On Outer membrane B) Outer surface of inner membrane
C) In between outer and inner membrane D) Soluble matrix
12. Gilbert's disease is due to
A) Defect in uptake of bilirubin by the liver
B) Severe deficiency of UDP glucuronyl transferase
C) Defective organic anion transport in bile canaliculi
D) Defective bilirubin excretion
13. The enzyme that is elevated in Rickets is
A) Serum Alkaline phosphatase B) Serum Alanine amino transferase
C) Serum Gamma glutamyl transferase D) Serum Acid phosphatase
14. All of the following are actions of Epinephrine, EXCEPT
A) Increase in blood glucose level B) Promotes glycogenolysis
C) Favours uptake of amino acids D) Inhibits Gluconeogenesis
15. All of the following are biological effects of Insulin on protein metabolism, EXCEPT
A) Inhibition of transaminases
B) Stimulation of ornithine trans carbamoylase
C) Stimulation of RNA polymerase
D) Favouring ribosome assembly
16. Non-Modifiable risk factor for cardiovascular disease is
A) Cigarette smoking B) Diabetes Mellitus C) Hypertension D) Age
17. All are causes of Hyperkalemia, EXCEPT
A) Addison's disease B) Increased hemolysis
C) Burns D) Cushing's syndrome
18. The biochemical role of Vitamin E is
A) Most powerful natural Antioxidant B) Causing hemolysis
C) Aggravating ageing process D) Increasing risk of atherosclerosis
19. The Vitamin needed for Oxidative Decarboxylation of alpha keto acid is
A) Pantothenic acid B) Pyridoxine C) Thiamine D) Riboflavin
20. The Vitamin that is necessary for hydroxylation of Proline and Lysine is
A) Vitamin A B) Vitamin B12 C) Vitamin C D) Vitamin D
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[MBBS 0824]
This post was last modified on 30 November 2024