electrochemical gradient(redirected from Electrochemical ion gradient)
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electrochemical gradient[i‚lek·trō‚kem·i·kəl ′grād·ē·ənt]
(cell and molecular biology)
The combined effect of a solute's concentration gradient across a membrane and the electric charge gradient across the membrane (the membrane potential), which drives the solute to cross the membrane.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.