Question

How much water is reabsorbed back into the blood during reabsorption?

almost none

20 %

50%

80%

Answer 1

Answer: C) 80%

Explanation: The process by which the nephron takes water and solutes from the tubular fluid and returns them to the circulating blood is known as REABSORBPTION OR TUBULAR REABSORBPTION.

The reason it is called reabsorption and NOT absorption is that these substances have already been absorbed (especially in the intestines ) and the body is reclaiming them from a postglomerular fluid stream that is about to turn into urine.