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1) Malic enzyme catalyzes the transformation of malate to pyruvate. The reaction is of

One answer only.

a) Oxidative deamination

b) Reductive decarboxylation

c) Reductive deamination

d) Oxidative decarboxylation

e) Decarboxylation

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2) In a competetive enzymatic reaction

One answer only.

a) Km decreases - Vmax shows no change

b) Km & Vmax increases

c) Km & Vmax decreases

d) Km shows no change & Vmax decreases

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3) Vitamin which prevent autooxidation

One answer only.

a) Tocopheral

b) Biotin

c) Vitamin A

d) Phyeloquinone

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4) To prevent rickets in a case of chronic renal failure which of the following substances should be administered

One answer only.

a) Cholecalciferol

b) Ergocalciferol

c) 25 - Hydroxy cholecalciferol

d) Calcitriol

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5) Which of the following is important in promoting the post translational formation of Gamma Carboxylglutamyl residues.

One answer only.

a) Vitamin A

b) Vitamin D

c) Vitamin K

d) Vitamin E

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6) Copper is found in all EXCEPT

One answer only.

a) Cytochrome oxidase

b) Catalase

c) Tyrosinase

d) Xanthene oxidase

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7) Cytochrome oxidase contains

One answer only.

a) Fe

b) Cu

c) Both

d) None of the above

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8) Zinc is essential for

One answer only.

a) Tyrosinase

b) Carbonic Anhydrase

c) Hexokinase

d) Oxidoreductase

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9) Apo B 48 and apo B 100 differ due to :

One answer only.

a) RNA splicing

b) Apo B gene

c) Chromosomal loci

d) Gene rearrangement

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10) Peptidases require the presence of following for their action

One answer only.

a) Mo

b) Mn

c) Co

d) Cu