Definition: The movement of ions across energy-transducing cell membranes. Transport can be active, passive or facilitated. Ions may travel by themselves (uniport), or as a group of two or more ions in the same (symport) or opposite (antiport) directions.
in biol systems: do not confuse with ION EXCHANGE, a physicochem process; coord NIM with endogenous substance /metab (IM) or with exogenous substance /pharmacokin (IM); if active transport, coord with BIOLOGICAL TRANSPORT, ACTIVE
See AlsoAntiporters; Ion Pumps; Symporters ExamplesCalcium Signaling
Other names Uniport; Symport; Ion Exchange, Intracellular; Ion Cotransport; Antiport; Transport, Active Ion; Ion Transport, Passive; Ion Transport, Facilitated; Ion Transport, Active; Intracellular Ion Exchange; Transport, Ion; Exchange, Intracellular Ion; Cotransport, Ion; Passive Ion Transport; Facilitated Ion Transport; Active Ion Transport
