The difference between pinocytosis and receptor-mediated endocytosis is that ________.
A) pinocytosis brings only water molecules into the cell, but receptor-mediated endocytosis brings in other molecules as well
B) pinocytosis increases the surface area of the plasma membrane, whereas receptor-mediated endocytosis decreases the plasma membrane surface area
C) pinocytosis is nonselective in the molecules it brings into the cell, whereas receptor-mediated endocytosis offers more selectivity
D) pinocytosis can concentrate substances from the extracellular fluid, but receptor-mediated endocytosis cannot

Question

Quizplus · Accepted Answer

Pinocytosis is nonselective in the molecules it brings into the cell, while receptor-mediated endocytosis offers more selectivity. Receptor-mediated endocytosis involves specific receptor proteins on the cell surface that bind to specific molecules, leading to their internalization. In contrast, pinocytosis involves the ingestion of fluids and small molecules nonspecifically. None of the other choices accurately describe the differences between these two processes.

The Difference Between Pinocytosis and Receptor-Mediated Endocytosis Is That ________