Transport of ions against their concentration gradient across cation-exchange membranes with very small mechanical permeabilities.
D055598:Chemical Phenomena; D002627:Chemistry, Physical; D007477:Ions; D008094:Lithium; D008567:Membranes, Artificial; D010539:Permeability; D011188:Potassium
D007477:Ions; D008567:Membranes, Artificial; D008094:Lithium; D011188:Potassium