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JAMB Biology 1985 Question 24

Question 24

Homeostasis

In mammals, the function of the sebaceous gland is to

  1. A.produce sweat
  2. B.secrete sodium chloride
  3. C.secrete water
  4. D.produce an oily substance
  5. E.manufacture vitamin D for the skin.
Show the answer and explanation

Answer: D (produce an oily substance)

Explanation

Sebaceous glands open into hair follicles and secrete sebum, an oily substance that keeps skin and hair soft and waterproof.