Ion selectivity of carriers and channels.
D001693:Biological Transport, Active; D004553:Electric Conductivity; D007477:Ions; D008672:Metals, Alkali; D010539:Permeability; D011188:Potassium / Q000378:metabolism*; D012964:Sodium / Q000378:metabolism*; D014867:Water
D007477:Ions; D008672:Metals, Alkali; D014867:Water; D012964:Sodium; D011188:Potassium