Which statement is correct concerning glomerular filtrate?
A) It is a plasma-free blood.
B) It is formed as a result of passive forces acting across the glomerular membrane.
C) It does not contain foreign compounds because these substances are secreted by special transport mechanisms in the proximal tubule instead.
D) Its rate is increased by increased plasma protein level.

Question

Quizplus · Accepted Answer

Glomerular filtrate is a plasma-derived ultrafiltrate that is formed as a result of passive forces acting across the glomerular membrane. It is not a plasma-free blood. It may contain foreign compounds, as there are no special transport mechanisms in the proximal tubule to actively secrete such compounds. Its rate is not increased by increased plasma protein level, but rather decreased due to increased resistance to filtration.

Which Statement Is Correct Concerning Glomerular Filtrate