The destruction of the biological nature and activity of proteins by heat or chemical agent is called :-

1.	Dehydration	2.	Denaturation
3.	De-nitrogenation	4.	Deamination

Enzyme trypsin converts:

1. amino acids into proteins

2. glucose into glycogens

3. starch into sugar

4. proteins into amino acids

Kwashiorkor is caused by the deficiency of?

1. vitamins

2. hormones

3. Carbohydrate

4. essential amino acids

Which is fat soluble vitamin?

(1) Vitamin A

(2) Pyridoxine

(3) Riboflavin

(4) Thiamine

Which vitamin contains N ?

(1) Vitamin A

(2) Vitamin C

(3) Vitamin B

(4) Vitamin D

Vitamin which is believed to cure common cold is ?

(1) A

(2) C

(3) K

(4) E

A vitamin which plays a vital role in the coagulating property of blood is:-

(1) vitamin A

(2) vitamin D

(3) vitamin B

(4) vitamin K

Which is not a poison for enzymes?

(1) CN^-                       

(2) Fe³⁺

(3) Pb²⁺                     

(4) ${\mathrm{AsO}}_4^{3-}$

The non-proteinous substances which certain enzymes required for their activity are called:

(1) catalysts                     

(2) inhibitors

(3) co-enzymes                 

(4) epimers

The complementary base of adenine in one strand to that in the other strand of DNA is:

1. Cytosine

2. Guanine

3. Uracil

4. Thymine