Question

The surface of the skin, that is heavily used becomes thicker and tougher, and is full of durable ........... protein.

• A. Eledin
• B. Keratohyalin
• C. Keratin
• D. Albumin

Answer 1

The correct option is C Keratin

Keratin is a fibrous protein. It helps in the formation of the structure of several vital organs. It forms the outer layer of human skin. It is also the key structural component of hair and nails. Keratin filaments are tough and form strong unmineralized tissues found in reptiles, birds, amphibians, and mammals.

So, the correct answer is option C.