In the kidneys, the process by which water is reabsorbed from the renal filtrate is:
A)passive transport
B)active transport
C)osmosis
D)pinocytosis

Question

Quizplus · Accepted Answer

Osmosis is the process by which water moves from an area of lower solute concentration (in this case, the renal filtrate) to an area of higher solute concentration (in this case, the interstitial fluid and ultimately the bloodstream). This process is passive and does not require energy expenditure.

In the Kidneys, the Process by Which Water Is Reabsorbed