Download NTRUHS 1st Year MBBS 2024 March Biochemistry Paper II MCQs Question Paper

Q.P. CODE: M102A031

Dr YSR UNIVERSITY OF HEALTH SCIENCES: VIJAYAWADA- 520008

MBBS DEGREE EXAMINATION - MARCH, 2024

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

FIRST M.B.B.S. EXAMINATION

BIOCHEMISTRY - PAPER-II (D)

(Multiple Choice Questions)

Time: 20 Minutes

Max Marks: 20

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

Note: Answer all questions.

SECTION-I (MCQs - 20 MARKS)

1X2=20

1. Non-essential amino acids are

   1. Are not components of tissue proteins

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

   2. Adequately synthesized in the body
   3. Have no role in metabolism
   4. May be synthesized in the body in diseased states

2. Maple syrup urine disease is an inborn error in metabolism of

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

   1. Sulphur-containing amino acids
   2. Aromatic amino acids
   3. Branched chain amino acids
   4. Dicarboxylic amino acids

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

3. An amino acid not found in proteins is

   1. Homocysteine
   2. Proline
   3. Lysine
   4. Histidine

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

4. Molecular weight of human albumin is about

   1. 156,000
   2. 90,000
   3. 69,000

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

   4. 54,000

5. The first amino acid incorporated in a polypeptide in a ribosome of a bacterium is

   1. N formyl methionine
   2. Methionine

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

   3. Alanine
   4. Glycine

6. Which one of the following disorders is characterized by self-mutilated behavior?

   1. Gouty arthritis

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

   2. Psoriasis
   3. Lesch-Nyhan Syndrome
   4. Severe combined immunodeficiency

7. Carnitine is synthesized from

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

   1. Lysine and methionine
   2. Glycine and arginine
   3. Aspartate and glutamate
   4. Proline and hydroxyproline

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

8. One of the following vitamins is associated with purine synthesis

   1. Folate
   2. Biotin
   3. Pyridoxine
   4. Vitamin B12

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

9. The following nucleoside is used in the treatment of Orotic aciduria

   1. Thymidine
   2. Uridine
   3. Adenosine

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

   4. Guanosine

10. Following all are anticancer drugs, except

    1. Cisplatin
    2. Actinomycin D

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

    3. 6-Mercaptopurine
    4. Azithromycin

11. The amino acids required for the synthesis of purines and pyrimidines are

    1. Glycine and Aspartate

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

    2. Aspartate and Glutamine
    3. Aspartate and Glutamate
    4. Glycine and Glutamate

12. The loss of DNA at the end chromosomes is prevented by the action of

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

    1. DNA ligase
    2. Telomerase
    3. DNA gyrase
    4. DNA polymerase

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

13. Increased gastric HCl secretion is found in

    1. Zollinger-Ellison syndrome
    2. Gastric carcinoma
    3. Pernicious anemia
    4. Gastritis

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

14. Calcitriol acts synergistically with the following hormone on bone

    1. Calcitonin
    2. Epinephrine
    3. Parathyroid hormone (PTH)

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

    4. Insulin

15. Vanden Bergh reaction is indirect positive in which jaundice?

    1. Hepatocellular
    2. Hemolytic

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

    3. Obstructive
    4. All of the above

16. Which one of the following vitamins acts as a cell scavenger?

    1. Vitamin E

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

    2. Vitamin D
    3. Vitamin A
    4. Vitamin K

17. Dietary requirement of thiamine increases with a higher intake of

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

    1. Carbohydrates
    2. Proteins
    3. Cholesterol
    4. Lipids

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

18. Keshan disease occurs due to the deficiency of

    1. Selenium
    2. Chromium
    3. Cobalt
    4. Manganese

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

19. Niacin can be synthesized from the following amino acid

    1. Histidine
    2. Tryptophan
    3. Tyrosine

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

    4. Threonine

20. Which one of the following trace element deficiencies causes loss of taste sensation?

    1. Copper
    2. Iron

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

    3. Zinc
    4. Selenium

FirstRanker.com

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