Question Detail

ZOO 101 ZOO 101 Past Questions Objective Question

Question

The surface film on the skin is composed of:
Options
A Melanin and keratin
B Sebum and sweat
Correct Answer
C Blood and lymph
D Keratinocytes and corneocytes
Correct Answer

Option B is the correct answer.

Detailed Explanation

The surface film (acid mantle) on the skin is composed of sebum (from sebaceous glands) and sweat (from sweat glands). This mixture helps maintain skin hydration, pH balance, and provides antimicrobial protection.

Hint

This protective mixture comes from oil and sweat glands.

Question Info