Diffusion of particles through a membrane by means of a carrier molecule is called:
A) pinocytosis.
B) osmosis.
C) facilitated diffusion.
D) dialysis.

Question

Quizplus · Accepted Answer

Facilitated diffusion involves the use of a carrier molecule to help transport particles across a membrane. This is different from osmosis, which refers specifically to the movement of water molecules across a membrane, and pinocytosis and dialysis, which involve the engulfment of substances by the cell or the separation of particles through a semipermeable membrane, respectively.

Diffusion of Particles Through a Membrane by Means of a Carrier