Membrane structure and passive flows.
D002462:Cell Membrane / Q000378:metabolism*; D002463:Cell Membrane Permeability; D003201:Computers; D007408:Intestinal Absorption; D008433:Mathematics; D008871:Microvilli / Q000378:metabolism* / Q000648:ultrastructure; D008954:Models, Biological; D012492:Salts / Q000378:metabolism
D012492:Salts