title: Ion movement through membrane channels.
mesh_terms: D000818:Animals; D001692:Biological Transport; D002462:Cell Membrane / Q000502:physiology*; D004553:Electric Conductivity; D006096:Gramicidin / Q000378:metabolism; D007473:Ion Channels / Q000502:physiology*; D008564:Membrane Potentials; D008954:Models, Biological
chemical_list: D007473:Ion Channels; D006096:Gramicidin