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NTRUHS MBBS Biochemistry December 2023 (15A03101 SET-B CBME)

15A03101Dr. NTR University of Health Sciences · Biochemistry · 2023 · December · CBME

Questions (20)

  1. 1.The following amino acid can enter the citric acid cycle as oxaloacetate: a. Lysine b. Proline c. Aspartate d. Serine
    1 Mark
  2. 2.Oxidative phosphorylation and electron transport chain are inhibited by the following compounds, except: a. Carbon monoxide b. Hydrogen cyanide c. Oligomycin d. Pyrophosphate
    1 Mark
  3. 3.The coenzyme: a. Increases the affinity of apoenzyme to substrate b. Lowers the activation energy c. Accepts one of the products of the reaction d. Increases the number of active sites of the enzyme
    1 Mark
  4. 4.Enzymes bind to substrate: a. By covalent bonds b. By glycosidic bond c. At catalytic site only d. Peptide bond
    1 Mark
  5. 5.A vitamin not available from plant source: a. Vitamin B1 b. Vitamin B12 c. Vitamin B2 d. Vitamin K
    1 Mark
  6. 6.Mac Ardle’s syndrome is due to deficiency of: a. Pyruvate kinase b. Glycogen synthase c. Muscle glycogen phosphorylase d. Debranching enzyme
    1 Mark
  7. 7.Which of the following enzyme is inhibited in starvation? a. Alanine transferase b. Glucokinase c. Pyruvate carboxylase d. Carbonic anhydrase
    1 Mark
  8. 8.Which of the following enzyme catalyzes substrate-level phosphorylation? a. Hexokinase b. Phosphofructokinase c. Glycogen phosphorylase d. Pyruvate kinase
    1 Mark
  9. 9.The serum lipoprotein with the highest cholesterol content is: a. High-density lipoprotein b. Low-density lipoprotein c. Very low-density lipoprotein d. Chylomicron
    1 Mark
  10. 10.Which of the following is not included in calculating the calorie requirement of an individual? a. BMR b. RO. c.5DA d. Nature of work
    1 Mark
  11. 11.Lysine is deficient in: a. Cereals (rice and wheat) b. Maize and corn c. Pulses (Bengal gram dal) d. Tapioca (Cassava)
    1 Mark
  12. 12.The structure of vitamin A contains: a. Naphthoquinone ring b. Chromane ring c. Beta-ionone ring d. Thiazole ring
    1 Mark
  13. 13.The following enzyme of heme biosynthesis is inhibited by lead: a. ALA dehydratase b. UBG | Synthase c. ALA synthase d. Coproporphyrinogen oxidase
    1 Mark
  14. 14.Which of the following processes makes use of free radicals? a. Cell adhesion b. Phagocytosis c. Contact inhibition d. Pinocytosis
    1 Mark
  15. 15.Hypercholesterolemia.js seen in the following conditions except: a. Diabetes mellitus b. Hyperthyroidism c. Nephrotic syndrome d. Obstructive jaundice
    1 Mark
  16. 16.The chain elongation of fatty acid takes place in: a. Mitochondria b. Microsomes c. Golgi complex. d. Peroxisome
    1 Mark
  17. 17.The following are the features of starvation except: a. Ketoacidosis b. Glycogenolysis c. Increase in BMR d. Gluconeogenesis
    1 Mark
  18. 18.Specific gravity of urine is increased in: a. Chronic glomerulonephritis b. Diabetes mellitus c. Liver disease d. Intake of vegetables
    1 Mark
  19. 19.Beta oxidation of fatty acid forms-all the following except: a. NADH b. Acetyl CoA c. Malonyl CoA d. FADH2
    1 Mark
  20. 20.Congenital erythropoietic porphyria is caused due to deficiency of: a. Coproporphyrinogen oxidase b. Uroporphyrinogen III cosynthase c. PBG deaminase d. Protoporphyrinogen oxidase
    1 Mark

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