Question

Keratin is a structural protein present in

• A. Wool
• B. Skin
• C. Hair
• D. All of the above

Answer 1

The correct option is D

All of the above

The correct option is D.

Explanation for correct option:

1. Keratin is a fibrous protein present in hair, nails, horn, wool, feathers, and skin cells.
2. It protects and strengthens the cells and provides elasticity to the skin.

Explanation for incorrect option:

Option A:

Wool is a hair-like fiber produced by animals such as alpacas, llamas, sheep, and goats.

Option B:

Skin is the outer covering of the body and offers protection.

Option C:

Hair is a part of the epidermis and is composed of keratin.

Final answer: Keratin is a structural protein present in All of the above.