1.

(a) List four biological functions of proteins. (b) Name two diseases which are caused by the deficiency of Vitamin A and B.

Answer»

SOLUTION :(a) Functions of Proteins
1. A transport agent . For example : Oxygen is TRANSPORTED in the body by haemoglobin .
2. For MAINTENANCE of fluid BALANCE in the body.
3. For regulation of metabolism .
4. As structural materials for membranes or CONNECTIVE tissues.
(b) The deficiency of Vitamin A causes Xerophthalmia disease and deficiency of Vitamin `B_1` causes Beri-Beri disease.


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