Pinocytosis is the process in which the cell
A) internalizes ("drinks") a droplet of interstitial fluid.
B) internalizes ("eats") a large solid particle.
C) splits ("pinches") off a small part of itself to secrete into the extracellular space.
D) pumps small solutes against their concentration gradient and out of the cell.

Question

Quizplus · Accepted Answer

Pinocytosis is a form of endocytosis where the cell engulfs small amounts of extracellular fluid, effectively "drinking" the fluid and any dissolved substances within it.

Pinocytosis Is the Process in Which the Cell