The characteristics of movement of molecular across membrane 1. rate of transport is higher than can be 500 accounted for by diffusion through a lipid passive protein-med bilayer transport 2. it can be highly specific 3. it often shows saturation kinetics 4. transport can be competitively inhibited by compoun structurally similar to the transported molecule simple diffusion 01234567891011121314 nal concentration of giThe characteristics of movement of molecular across membrane