Definitions for "Facilitated diffusion"
diffusion in which a substance not soluble by itself in lipids is transported across a selectively permeable membrane by combining with a transporter (carrier) molecule
Passive movement through a membrane involving a specific carrier protein; does not proceed against a concentration gradient. (Contrast with active transport, free diffusion.)
the movement of molecules across a membrane from a region of high concentration to a region of low concentration that is assisted by proteins.