Question

Melanin is the natural pigment that gives colour to human skin, hair and the iris provides protection against.........

(a) ultraviolet radiation

(b) infrared radiation

(c) X-ray radiation

(d) short wave radio radiation

Answer 1

(a) ultraviolet radiation

Melanin provides protection against ultraviolet radiations. It acts as effective absorbent of light and dissipate over 99.9% of absorbed radiation.

Answer 2

(a) Ultraviolet radiation

Melanin is a protective pigment in skin blocking UV radiation from damaging DNA and potentially causing skin cancer.UVA radiation causes lesions or DNA damage to melanocytes which are the skin cells that produce the skin pigment known as melanin.