The Osmoregulatory Process Called Secretion Refers to The

Question

The osmoregulatory process called secretion refers to the
A)formation of filtrate at an excretory structure.
B)reabsorption of nutrients from a filtrate.
C)selective elimination of excess ions and toxins from body fluids.
D)formation of an osmotic gradient along an excretory structure.
E)expulsion of urine from the body.

Accepted Answer

Secretion is the process of selectively eliminating excess ions and toxins from body fluids. This is different from filtration, which is the formation of a filtrate at an excretory structure, and reabsorption, which is the process of absorbing nutrients from a filtrate. Formation of an osmotic gradient and expulsion of urine from the body are not specifically related to secretion.