electrochemical gradient

(redirected from 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.
References in periodicals archive ?
This creates a downhill sodium ion gradient inside the cell in comparison to both the blood and the tubule/ gastric lumen.
It is thought that in seawater, the potassium ion is exchanged for the sodium ion which is eliminated through the blood into the seawater, and that this effect might be responsible for the maintenance of the sodium ion gradient concentration through the gills.
We showed that different classes of anion transporters can have different behaviour in regulating ion gradients, membrane potential and pH gradients in cells.