Biochemistry Mcqs

Serum alkaline phosphatase level increase in_______________?

• (A)  Hypothyroidism
• (B)  Carcinoma of prostate
• (C)  Hyperparathyroidism
• (D)  Myocardial infarction

Answer

Submitted By :Ali Uppal

Enzymes concerned with the citric acid cycle are found in______________?

• (A)  Nucleus
• (B)  Mitochondria
• (C)  Ribosomes
• (D)  Non-particulate cytoplasm

Answer

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

Answer

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

Answer

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

Answer

Submitted By :Ali Uppal

Megnesium is needed for the activity of which enzymes ?

• (A)  Phosphatase
• (B)  Aldolase
• (C)  Dismutase
• (D)  ATPase

Answer

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

Answer

Submitted By :Ali Uppal

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

• (A)  Nyctalopia
• (B)  Xerophthalmia
• (C)  Bitot’s spot
• (D)  Keratomalacia

Answer

Submitted By :Ali Uppal

LDH has following number oflsoenzymes________________?

• (A)  5
• (B)  3
• (C)  11
• (D)  2

Answer

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

Answer

Submitted By :Ali Uppal