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Biochemistry Mcqs

Elevated levels of serum glutamic oxaloacetic transaminase in indicative of______________?

  • (A)  Deficiency of glutamic acid
  • (B)  Deficiency of oxaloacetic acid
  • (C)  Liver disease
  • (D)  All of the above
Submitted By :Ali Uppal


The enzyme that is specifically increased in obstructive jaundice is_____________?

  • (A)  Glutamate oxaloacetate transaminase
  • (B)  Glutamate pyruvate transaminase
  • (C)  Alkaline phosphaase
  • (D)  Acid phosphatase
Submitted By :Ali Uppal


Acetyl Co-A acts as a substrate for all the enzymes except______________?

  • (A)  HMG-Co A synthase
  • (B)  Malic enzyme
  • (C)  Malonyl CoA synthetase
  • (D)  Fatty acid synthetase
Submitted By :Ali Uppal


Km of an enzyme is_____________?

  • (A)  Dissociation constant
  • (B)  The normal physiological substrate concentration
  • (C)  Substrate concentration at half maximal velocity
  • (D)  Numerically identical for all isozymes that catalyses a given reaction
Submitted By :Ali Uppal


Submitted By :Ali Uppal


Fraction of CPK is an enzyme that is elevated in a myocardial infarct is____________________?

  • (A)  MM fraction
  • (B)  MB fraction
  • (C)  BB fraction
  • (D)  Both MM and BB fraction
Submitted By :Ali Uppal


Enzymes are classified according to_________________?

  • (A)  Action on substrate
  • (B)  Action of coenzymes
  • (C)  Nature of the enzymes
  • (D)  All of the above
Submitted By :Ali Uppal


The activity of this plasma enzyme is responsible virtually for all plasma cholesterol esters in humans_______________?

  • (A)  Lecithin cholesterol acyl transferase (LCAT)
  • (B)  Pyrophospho mevalonate decarboxylase
  • (C)  HMG CoA reductase
  • (D)  Phospho mevalonate kinase
Submitted By :Ali Uppal


Submitted By :Ali Uppal


Synthesis of protein occurs on_____________?

  • (A)  Mitochondria
  • (B)  Poly ribosomes
  • (C)  Nucleus
  • (D)  Golgi bodies
Submitted By :Ali Uppal