Easy Definition For Facilitated Diffusion

Since substances move along the direction of their concentration gradient chemical energy is not directly required.

Easy definition for facilitated diffusion. Facilitated diffusion is a form of facilitated transport involving the passive movement of molecules along their concentration gradient guided by the presence of another molecule usually an integral membrane protein forming a pore or channel. It is the process of transporting particles into and out of a cell membrane. Facilitated diffusion is the process of biological transport in which specific structural components of biological membranes interact with particular solutes or classes of solutes markedly increasing the rates at which they can cross the membrane. Facilitated diffusion occurs in the cell body.