title: Letter: On the reversibility of the sodium pump in dialyzed squid axons. A method for determining the free energy of ATP breakdown?
mesh_terms: D000255:Adenosine Triphosphate; D000818:Animals; D001369:Axons / Q000378:metabolism*; D001693:Biological Transport, Active; D002463:Cell Membrane Permeability; D049832:Decapodiformes; D012964:Sodium / Q000378:metabolism*
chemical_list: D000255:Adenosine Triphosphate; D012964:Sodium