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Biochemistry Mcqs

In TCA cycle or tricarboxylic acid cycle, which is first formed________________?

  • (A)  Isocitrate
  • (B)  Citrate
  • (C)  Succinate
  • (D)  Fumarate
Submitted By :Ali Uppal


Kreb’s cycle does not occur in______________?

  • (A)  Muscle
  • (B)  RBC
  • (C)  Heart
  • (D)  All of the above
Submitted By :Ali Uppal


Which one of the following is the correct sequential order in which the given enzymes of kreb’s cycle are formed after a molecule of acetyl CoA______________?

  • (A)  Citrate, Oxalocetate, Ketoglutarate
  • (B)  Ketoglutarate, Oxalocetate, Citrate
  • (C)  Citrate, Ketoglutarate, Oxalocetate
  • (D)  Oxalocetate, Ketoglutarate, Citrate
Submitted By :Ali Uppal


Inhibition of glycolysis by O2 is known a_____________?

  • (A)  Muni effect
  • (B)  Pasteur effect
  • (C)  Hill reaction
  • (D)  Gluconeogenesis
Submitted By :Ali Uppal


In glycolysis ATP is produced by the following enzyme______________?

  • (A)  Hexokinase
  • (B)  Phosphoglycerate kinase
  • (C)  Enolase
  • (D)  Phosphohexose isomerase
Submitted By :Ali Uppal


The main pathways of metabolism in brain are______________?

  • (A)  Glycolysis and citric acid cycle
  • (B)  Glycogenolysis and Gluconeogenesis
  • (C)  Embden-Meyerhof Pathway and H.M.P shunt
  • (D)  Glycogenolysis and Citric and cycle
Submitted By :Ali Uppal


Submitted By :Ali Uppal


Step in HMP pathway requiring TPP_____________?

  • (A)  G6 PD
  • (B)  6 phosphogluconate dehydrogenase
  • (C)  Transketolase
  • (D)  Transaldolase
Submitted By :Ali Uppal


Sites where HMP shunts can occur include_______________?

  • (A)  Liver
  • (B)  WBC
  • (C)  Lactating mammary gland
  • (D)  Testes
  • (E)  All of the above
Submitted By :Ali Uppal


Glucose 6 phosphatase deficiency is seen in______________?

  • (A)  Pomper’s disease
  • (B)  Von Gierke’s disease
  • (C)  McArdles syndrome
  • (D)  Downs syndrome
Submitted By :Ali Uppal