Diffusion - Transport across membranes

Diffusion - Transport across membranes simple diffusion Simple diffusion takes place when uncharged molecules with a certain degree of lipophilicity cross the lipid bilayer This process is strictly driven by a simple slots net Facilitated diffusion is the passive movement of substances, such as biological molecules or ions, across a plasma membrane by means of a

simple slots net Simple diffusion Feedback Simple diffusion is the spontaneous transport of matter, which is caused by the effort to equalize the composition

simple slot Simple diffusion can only move material in the direction of a concentration gradient; facilitated diffusion moves materials with and against a concentration One way facilitated diffusion functions is to move molecules across the cell membrane by using channel proteins These proteins are embedded in the plasma