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Biochemistry; Free Online Mock Test 63

Author: RxPG, Posted on Saturday, August 16 @ 00:00:00 IST by RxPG  

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Multiple Choice Test

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

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

3) Vitamin which prevent autooxidation

One answer only.
a) Tocopheral
b) Biotin
c) Vitamin A
d) Phyeloquinone

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

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

6) Copper is found in all EXCEPT

One answer only.
a) Cytochrome oxidase
b) Catalase
c) Tyrosinase
d) Xanthene oxidase

7) Cytochrome oxidase contains

One answer only.
a) Fe
b) Cu
c) Both
d) None of the above

8) Zinc is essential for

One answer only.
a) Tyrosinase
b) Carbonic Anhydrase
c) Hexokinase
d) Oxidoreductase

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

10) Peptidases require the presence of following for their action

One answer only.
a) Mo
b) Mn
c) Co
d) Cu

This test has been created using the RxPG

4 (Excellent) 3(Good) 2(Good) 1(Bad)   

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