Biochemistry and clinical pathology mcqs (11-20)

11.Cholesterol is a

A. Fatty acid

B. Phospholipid

C. Sterol

D. Glycolipid

Ans. C

12.Non reducing sugar, which does not exhibit mutarotation is

A. Maltose

B. Sucrose 

C. Glucose

D. Lactose 

Ans. B

13.Phosphatidic acid contains

A. Glycerol and fatty acids

B. Glycerol and phosphoric acid

C. Glycerol, fatty acids and choline

D. Glycerol, fatty acids and phosphoric acid

Ans. D

14.Rancidity of fat is due to

A. Hydrolysis of ester bond

B. Hydrogenation of unsaturated bond

C. Addition of halogens

D. Substitution reaction 

Ans. A

15.Atherosclerosis is

A. Accumulation of fat in the liver

B. Low cholesterol in the blood

C. Increased level of HDL in the blood

D. Deposition of cholestrol esters in the arteries

Ans. D

16.The pigment in the rod cells of eye is

A. Haemoglobin

B. Melanin

C. Rhodopsin

D. Iodopsin

Ans. C

17.The process of blood clotting is initiated by

A. Prothrombin

B. Fibrinogen

C.Thrombin

D. Thromboplastin

Ans. D

18.Vitamin K deficiency causes

A. Dermatitis

B. Retarded growth

C. Astigmatism 

D. Haemorrage

Ans. D

19.RNA molecules having intrinsic catalytic activity are called as

A. Ribozymes

B. sRNA s

C. rRNAs

D. mRNAs

Ans.A

20.Vitamin B2 is a component of

A.NAD+

B.FAD

C.TPP

D.CoA

Ans.B