title: Ion transport processes in apical membranes of epithelia.
mesh_terms: D000818:Animals; D001693:Biological Transport, Active; D002462:Cell Membrane / Q000378:metabolism*; D002712:Chlorides / Q000378:metabolism; D004848:Epithelium / Q000378:metabolism*; D004912:Erythrocytes / Q000378:metabolism; D005399:Fishes; D005704:Gallbladder / Q000378:metabolism; D007413:Intestinal Mucosa / Q000378:metabolism; D007477:Ions; D007668:Kidney / Q000378:metabolism; D007700:Kinetics; D009337:Necturus; D011188:Potassium / Q000378:metabolism; D012964:Sodium / Q000378:metabolism
chemical_list: D002712:Chlorides; D007477:Ions; D012964:Sodium; D011188:Potassium