Biology
Assertion (A): Keratin is the fibrous structural protein located in the stratum corneum of the epidermis.
Reason (R): Keratin makes the skin tough and impervious.
- A is True and R is False.
- A is False and R is True.
- Both A and R are True.
- Both A and R are False.
Skin
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Answer
Both A and R are True.
Reason — Keratin is a fibrous structural protein found in the stratum corneum, the outermost layer of the epidermis. Keratin provides strength, waterproofing, and protection to the skin. It makes the skin tough, and reduces permeability, preventing excessive water loss and entry of pathogens.
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