Some similarities between processes at biological membranes and lipid bilayers.

Several processes at biological membranes can be simulated by experiments with artificial lipid bilayer membranes. Three selected examples are discussed: The uncoupler induced proton permeability of lipid bilayers, the initiation of action potential like voltage responses in lipid membranes, and the reconstitution of active cation pumps across planar lipid bilayers or lipid vesicles.