The function of keratin is to:
A)prevent the entry of water
B)prevent the entry of pathogens
C)both A and B
D)both A and B,and prevent the loss of water

Question

Quizplus · Accepted Answer

Keratin is a fibrous structural protein that is the main component of hair, nails, and the outer layer of skin in animals. Its function is to protect the skin from damage, prevent the entry of water and pathogens, and prevent the loss of water. Therefore, the best choice is D since it includes both options A and B and adds an additional function.

The Function of Keratin Is To