361. LDH has following number oflsoenzymes________________?
A. 5
B. 3
C. 11
D. 2

362. One of the earliest symptoms of Vit. A deficiency is________________?
A. Nyctalopia
B. Xerophthalmia
C. Bitot’s spot
D. Keratomalacia

363. The enzyme phosphofructo kinase-1 is strongly activated by_______________?
A. Cyclic AMP
B. Adenosine tri phosphate
C. Citrate
D. Fructose 2,6 bis phosphate

364. Megnesium is needed for the activity of which enzymes ?
A. Phosphatase
B. Aldolase
C. Dismutase
D. ATPase

365. When the prosthetic group of an enzyme is an inorganic ion, it is called a_____________?
A. Cofactor
B. Coenzyme
C. Apoenzyme
D. Holoenzyme

366. 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

367. The most common enzyme deficiency in man is___________?
A. Glucose 6 phosphate dehydrogenase
B. Glucose 6 phosphatase
C. Hexokinase
D. Glucose 1,6 diphosphatase

368. Enzymes concerned with the citric acid cycle are found in______________?
A. Nucleus
B. Mitochondria
C. Ribosomes
D. Non-particulate cytoplasm

369. Serum alkaline phosphatase level increase in_______________?
A. Hypothyroidism
B. Carcinoma of prostate
C. Hyperparathyroidism
D. Myocardial infarction

370. The enzyme that splits hydrogen peroxide into water and oxygen is_____________?
A. Cytochromes
B. Cytochrome P 450
C. Super oxide dismutase
D. Catalase

 

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