But what happens to the electrons once they are abstracted by FMM? Well, once the electrons are abstracted by FMN, those electrons begin to move along a series of other groups known as iron sulfur clusters, iron sulfur groups. And as these electrons actually move along these different groups we know from basic physics that whenever electrons flow along a certain area, that flow of electrons is what we call an electric current. And that electric current can be used to power some type of process. And in this particular case, the process that we power is the pumping of H plus ions. So what we want to do is we want to establish a proton electrochemical gradient that will ultimately be used by ATP synthase to form ATP molecules.