The process of filtration is driven mainly by
A) active transport.
B) blood osmotic pressure.
C) blood hydrostatic pressure.
D) renal pumping.
E) solvent drag.

Question

Quizplus · Accepted Answer

Filtration is a passive process that occurs in the glomerulus of the kidney. It is driven mainly by the blood hydrostatic pressure, which is the pressure of the fluid against the walls of the blood vessels. This pressure forces water and solutes out of the glomerular capillaries and into the Bowman's capsule. The other options listed involve active processes such as pumping and active transport, which are not involved in the passive process of filtration. Solvent drag also plays a minor role in filtration, but it is not the main driving force.

The Process of Filtration Is Driven Mainly by