Biology - Chemical Coordination and Integration Question with Solution | TestHub

Sebaceous glands eliminate certain substances like sterols, hydrocarbons, and waxes through sebum. This secretion provides a protective oily covering for the skin, making it softer and protecting it from infection and injury.

Sweat glands excrete a watery fluid containing NaCl, small amounts of urea, lactic acid, etc. Therefore, the excretion of water, NaCl, lactic acid, and urea is the function of sweat glands, not sebum.

Answer: It excretes substances like water, NaCl, lactic acid and urea.