1511. The enzyme phosphofructo kinase-1 is strongly activated by :

A. Cyclic AMP
B. Adenosine tri phoshate
C. Citrate
D. Fructose 2,6 bis phosphate *

1512. Megnesium is needed for the activity of which enzymes?

A. Phoshatase
B. Aldolase
C. Dismutase
D. ATPase *

1513. When the prosthetic group of an enzyme is an inorganic ion, it is called a :

A. Cofactor *
B. Coenzymes
C. Apoenzymes
D. Holoenzymes

1514. Coenzyme, in an enzymatic reaction usually fucntions 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 *

1515. The most common enzyme dehydrogenase man is :

A. Glucose 6phosphate dehydrogenase *
B. Glucose 6phosphatase
C. Hexokinase
D. Glucose 1,6 diphosphatase

1516. Enzymes concerned with the citric acid cycle are found in :

A. Nucleus
B. Mitochondria *
C. Ribosomes
D. Non-particulate cytoplasm

1517. Serum alkaline phosphatase level increase in :

A. Hypothyroidism
B. Carcinoma of prostate
C. Hyperparathyroidism *
D. Myocardial infarction

1518. The enzyme that splits hydrogen peroxide into water and oxygen is :

A. Cytochromes
B. Cytochrome P 450
C. Super oxide dismutase
D. Catalase *

1519. Enzyme that catalyses te transfer ofa molecule group from one molecule to another is :

A. Oxidase
B. Peptidases
C. Transferases *
D. Lipases

1520. The activity of this plasma enzyme is responsible vitually 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