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Biochemistry Mcqs

Serum alkaline phosphatase level increase in_______________?

  • (A)  Hypothyroidism
  • (B)  Carcinoma of prostate
  • (C)  Hyperparathyroidism
  • (D)  Myocardial infarction
Submitted By :Ali Uppal


Enzymes concerned with the citric acid cycle are found in______________?

  • (A)  Nucleus
  • (B)  Mitochondria
  • (C)  Ribosomes
  • (D)  Non-particulate cytoplasm
Submitted By :Ali Uppal


The most common enzyme deficiency in man is___________?

  • (A)  Glucose 6 phosphate dehydrogenase
  • (B)  Glucose 6 phosphatase
  • (C)  Hexokinase
  • (D)  Glucose 1,6 diphosphatase
Submitted By :Ali Uppal


Coenzyme, in an enzymatic reaction usually functions to_____________?

  • (A)  Activate the substrate
  • (B)  Increase the active sites of apoenzyme
  • (C)  Enhance the specificity of apoenzyme
  • (D)  Accept one of the cleavage products
Submitted By :Ali Uppal


When the prosthetic group of an enzyme is an inorganic ion, it is called a_____________?

  • (A)  Cofactor
  • (B)  Coenzyme
  • (C)  Apoenzyme
  • (D)  Holoenzyme
Submitted By :Ali Uppal


Megnesium is needed for the activity of which enzymes ?

  • (A)  Phosphatase
  • (B)  Aldolase
  • (C)  Dismutase
  • (D)  ATPase
Submitted By :Ali Uppal


The enzyme phosphofructo kinase-1 is strongly activated by_______________?

  • (A)  Cyclic AMP
  • (B)  Adenosine tri phosphate
  • (C)  Citrate
  • (D)  Fructose 2,6 bis phosphate
Submitted By :Ali Uppal


One of the earliest symptoms of Vit. A deficiency is________________?

  • (A)  Nyctalopia
  • (B)  Xerophthalmia
  • (C)  Bitot’s spot
  • (D)  Keratomalacia
Submitted By :Ali Uppal


Submitted By :Ali Uppal


Muscle glycogen, which cannot contribute to blood glucose due to the absence of which enzymes ?

  • (A)  Phosphoglutamase
  • (B)  Branching enzyme
  • (C)  Debranching enzyme
  • (D)  Glucose-6-phosphotase
Submitted By :Ali Uppal