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Download NTRUHS 1st Year MBBS 2023 April Biochemistry Paper II Question Paper

Download NTRUHS (Dr.NTR University of Health Sciences) MBBS (Bachelor of Medicine, Bachelor of Surgery) First Year (1st Year) 2023 April Biochemistry Paper II Previous Year Question Paper || For More Question Papers, Notes and Important Questions Download MBBS Question Bank APP

This post was last modified on 04 April 2025

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DR. YSR UNIVERSITY OF HEALTH SCIENCES:AP:VIJAYAWADA-520 008

MBBS DEGREE EXAMINATION – APRIL, 2023

FIRST M.B.B.S. EXAMINATION

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BIOCHEMISTRY – PAPER-II (Set C)

(Multiple Choice Questions)

Time: 20 Minutes Max Marks: 20

Note: Answer all questions 1x20=20

SECTION – I (MCQs- 20 MARKS)

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  1. The amino acid found in protein structure
    1. Arginine
    2. Proline
    3. Histidine
    4. Lysine
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  3. Non protein amino acid is
    1. Ornithine
    2. Homocysteine
    3. Histamine
    4. All of them
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  5. The following nitrogenous base not present in DNA structure
    1. Adenine
    2. Guanine
    3. Cytosine
    4. Uracil
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  7. The bonds in protein structure that are not broken on denaturation
    1. Hydrogen bonds
    2. Peptide bonds
    3. Ionic bonds
    4. Disulfide bonds
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  9. Which is a sulfur containing essential amino acid
    1. Methionine
    2. Cysteine
    3. Cystine
    4. All of them
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  11. The following coenzyme is a nucleotide
    1. FAD
    2. NAD+
    3. COASH
    4. All of them
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  13. Iron in the mucosal cells binds with the protein
    1. Transferrin
    2. Ferritin
    3. Ceruloplasmin
    4. Hemosiderin
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  15. Hemophilia A is due to the deficiency of clotting factor
    1. X
    2. V
    3. VIII
    4. II
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  17. The only route through which H+ ions are eliminated from the body
    1. Lungs
    2. Stomach
    3. Kidneys
    4. None of them
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  19. Element that prevents the development of dental caries
    1. Fluorine
    2. Calcium
    3. Phosphorus
    4. Sodium
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  21. The anion with highest concentration in the extracellular fluids is
    1. Cl-
    2. HCO3-
    3. HPO4-
    4. Protein
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  23. Fight, fright and flight hormone is
    1. Thyroxine
    2. Aldosterone
    3. Epinephrine
    4. ADH
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  25. Mitochondrial DNA is inherited from
    1. Mother only
    2. Father only
    3. Both of them
    4. Either mother or father
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  27. The anion gap refers to the unmeasured plasma anion concentration (in the laboratory) and is represented by
    1. Proteins and organic acids
    2. Phosphate and sulfate
    3. Urate
    4. All of them
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  29. Methylation of DNA results in
    1. Recruiting proteins involved proteins involved in gene repression
    2. Inactivation of genes
    3. No effect on genes
    4. Inactivation of protein motifs
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  31. Enzyme that removes RNA primer during DNA replication is
    1. Primase
    2. DNA polymerase I
    3. DNA polymerase II
    4. Ligase
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  33. As per WHO criteria, a person is said to be diabetic in oral glucose tolerance test (GTT)
    1. Fasting blood glucose exceeds 126 mg/dl, and 2 hours after OGTT goes beyond 200 mg/dl
    2. Fasting blood glucose exceeds 86 mg/dl, and 2 hours after OGTT goes beyond 100 mg/dl
    3. Fasting blood glucose exceeds 76 mg/dl, and 2 hours after OGTT goes beyond 92 mg/dl
    4. None of the above
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  35. Carcinoembryonic antigen produced by the embryonic tissue of
    1. Liver
    2. Gut
    3. Pancreas
    4. All of the above
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  37. Tetany is associated with the following condition
    1. Hypocalcemia
    2. Hypercalcemia
    3. Hyperparathyroidism
    4. Renal rickets
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  39. HbA1c reflects the mean blood glucose level over months period prior to its measurement
    1. 2
    2. 3
    3. 4
    4. 6
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