Blood colloid osmotic pressure tends to draw water out of the filtrate and into the plasma.Why does this occur?
A)The solute concentration in the proximal convoluted tubule is higher than that of the distal convoluted tubule.
B)The solute concentration in the blood exceeds that within the filtrate.
C)The solute concentration in the filtrate exceeds that within the blood.
D)The filtrate contains higher concentrations of protein than that within the blood.
E)The filtrate contains higher numbers of red blood cells than that within the blood.

Question

Quizplus · Accepted Answer

Blood colloid osmotic pressure is generated by the presence of proteins in the blood, which create an osmotic gradient that draws water from the filtrate in the nephron back into the bloodstream. This occurs because the solute concentration in the blood is higher than that in the filtrate, resulting in a net movement of water from an area of lower solute concentration to an area of higher solute concentration.

Blood Colloid Osmotic Pressure Tends to Draw Water Out of the Filtrate