Question

Observe the picture of skin and answer the questions given below.

a. Identify the parts indicated as A, B, C.

b. What is the role of these parts in defense mechanism?

Answer 1

a. A – Epidermis B – Sebaceous gland C – Sweat gland

b. A protein called keratin present in the epidermis prevents the entry of germs. Sebum produced by the sebaceous gland makes the skin oily and waterproof. The disinfectants present in the sweat produced by sweat gland destroy the germs.