These guys can be thought of as being the membrane. Okay? Now what happens in this cell? Well, if in this cell oxidation takes place, then our sodium side molecules oh, by the way, these guys are made from sodium solid. So our sodium solid molecules are oxidized, releasing our NA molecules into our solution and releasing electrons into this conductor. These electrons then transfer all the way to this electrode, react with a positively charged ion, which is taken off from the solution into our electrode.