Download NTRUHS 1st Year MBBS 2022 February Biochemistry Paper II Question Paper

Q.P. CODE:500-B-CBME

DR. NTR UNIVERSITY OF HEALTH SCIENCES: AP:VIDAYAWADA-520 008

MBBS DEGREE EXAMINATION – JAN/FEB, 2022

FIRST M.B.B.S. EXAMINATION

BIOCHEMISTRY – PAPER-II (Set A)

--- Content provided by FirstRanker.com ---

(Multiple Choice Questions)

Time: 20 Minutes

Note: Answer all questions

SECTION – I (MCQs- 20 MARKS)

1. During urea cycle two nitrogen atoms are derived from
   1. Ammonia and arginine

   --- Content provided by FirstRanker.com ---

   2. Ammonia and aspartic acid
   3. Both from Ammonia
   4. Ammonia and Ornithine
2. Ammonia is trapped in brain by
   1. Glutamine Synthetase reaction

   --- Content provided by FirstRanker.com ---

   2. Glutaminase reaction
   3. Urea Synthesis cycle
   4. Glutamate dehydrogenase reaction
3. The Major Donor of Carbon Atoms to the One-Carbon Pool is
   1. Serine

   --- Content provided by FirstRanker.com ---

   2. Tyrosine
   3. Threonine
   4. Proline
4. Which amino acid will give rise to major pigment of the body?
   1. Histidine

   --- Content provided by FirstRanker.com ---

   2. Glutamic acid
   3. Ornithine
   4. Tyrosine
5. Homogentisic acid is excreted in urine in
   1. Phenylketonuria

   --- Content provided by FirstRanker.com ---

   2. Maple syrup urine disease
   3. Tyrosinosis
   4. Alkaptonuria
6. Ochronosis is seen in
   1. Phenyl Ketonuria

   --- Content provided by FirstRanker.com ---

   2. Alkaptonuria
   3. Tyrosinosis
   4. Albinism
7. The anti-coagulant found in the body
   1. Potassium oxalate

   --- Content provided by FirstRanker.com ---

   2. Sodium Citrate
   3. Heparin
   4. EDTA
8. Hemopexin carries
   1. Free hemoglobin

   --- Content provided by FirstRanker.com ---

   2. Free heme
   3. Free bilirubin
   4. Free iron
9. Administration of diuretics cause loss of potassium which may lead to
   1. Metabolic acidosis

   --- Content provided by FirstRanker.com ---

   2. Respiratory acidosis
   3. Respiratory alkalosis
   4. Metabolic alkalosis
10. Which of the following conditions will produce high anion gap acidosis?
    1. Diarrhea

    --- Content provided by FirstRanker.com ---

    2. Renal tubular acidosis
    3. Renal failure
    4. Uretero sigmoidostomy
11. ECF volume does not change with
    1. ADH

    --- Content provided by FirstRanker.com ---

    2. Aldosterone
    3. Calcitriol
    4. Renin
12. The cation with lowest intra cellular concentration
    1. Potassium

    --- Content provided by FirstRanker.com ---

    2. Magnesium
    3. Sodium
    4. Calcium
13. Which contains iron
    1. Ceruloplasmin

    --- Content provided by FirstRanker.com ---

    2. Xanthine oxidase
    3. Albumin
    4. Superoxide desmutase
14. Which enzyme do not contain copper?
    1. Cytochrome Oxidase

    --- Content provided by FirstRanker.com ---

    2. Superoxide dismutase
    3. Xanthine oxidase
    4. Tyrosinase
15. The micro mineral present in teeth is
    1. Calcium

    --- Content provided by FirstRanker.com ---

    2. lodine
    3. Fluorine
    4. Manganese
16. Which of the following trace element has antioxidant role?
    1. Chromium

    --- Content provided by FirstRanker.com ---

    2. Zinc
    3. Selenium
    4. Nickel
17. Sigma factor is
    1. A sub unit of DNA polymerase

    --- Content provided by FirstRanker.com ---

    2. A sub unit of RNA polymerase
    3. A sub unit of 50 S ribosome
    4. responsible for initiation of replication
18. Intron is portion of
    1. DNA that is cleaved of during replication

    --- Content provided by FirstRanker.com ---

    2. mRNA that is removed after transcription
    3. tRNA that is added on after its synthesis
    4. Protein removed after translation
19. Which hormone does not act at the level of transcription
    1. Cortisol

    --- Content provided by FirstRanker.com ---

    2. Calcitriol
    3. Aldosterone
    4. Calcitonin
20. M band in serum protein electrophoresis is seen in which condition?
    1. Cirrhosis

    --- Content provided by FirstRanker.com ---

    2. Chronic infections
    3. Multiple myeloma
    4. Heavy chain disease

--- Content provided by FirstRanker.com ---