What process lowers blood plasma levels of cholesterol-containing lipoproteins?
A) second messenger-activated, sterol transgenesis
B) hydrophobic phagocytosis
C) simple, transcellular membrane diffusion
D) Na+ gradient-dependent, secondary active transport
E) clathrin-dependent, receptor-mediated endocytosis

Question

Quizplus · Accepted Answer

Clathrin-dependent, receptor-mediated endocytosis is the process by which cells take up cholesterol-containing lipoproteins from the blood plasma. This process is mediated by specific receptors on the surface of cells, which bind to lipoproteins and internalize them through clathrin-coated pits. Once internalized, the lipoproteins are processed and their cholesterol content is either utilized by the cell or transported out of the cell for elimination. This process helps to lower blood plasma levels of cholesterol-containing lipoproteins.

What Process Lowers Blood Plasma Levels of Cholesterol-Containing Lipoproteins