title: Zone melting as a model for active transport across the cell membrane.
mesh_terms: D001693:Biological Transport, Active; D002463:Cell Membrane Permeability; D002586:Cesium / Q000378:metabolism; D007477:Ions; D008094:Lithium / Q000378:metabolism; D008564:Membrane Potentials; D008954:Models, Biological; D011188:Potassium / Q000378:metabolism; D012413:Rubidium / Q000378:metabolism; D012666:Semiconductors; D012964:Sodium / Q000378:metabolism; D013816:Thermodynamics; D014867:Water / Q000378:metabolism
chemical_list: D007477:Ions; D014867:Water; D002586:Cesium; D008094:Lithium; D012964:Sodium; D012413:Rubidium; D011188:Potassium