Definition: The movement of materials across cell membranes and epithelial layers against an electrochemical gradient, requiring the expenditure of metabolic energy.
almost never IM; coord with endogenous substance /metab (IM) or exogenous substance /pharmacokin (IM); DF: BIOL TRANSPORT ACTIVE
See AlsoIon Pumps ExamplesActive Transport, Cell Nucleus
Other names Uphill Transport; Active Transport; Transport, Uphill; Transport, Active Biologic; Transport, Active; Active Biologic Transport; Transport, Active Biological; Biologic Transport, Active; Active Biological Transport