And that's why we call it Coenzyme Q ten. And what happens is the two electrons and two H plus ions are accepted. So one electron and one H plus ion is accepted by each one of these groups shown here and here to form the fully reduced form we call Ubiquinol or QH two. So this structure accepts electrons from either complex one or two to form the reduced form, QH two. And then that travels to complex three, where it gives off those electrons to complex three, which ultimately move along the complex and onto cytochrome C. And cytochrome C, unlike Coenzyme Q, is a small water soluble protein. So remember, this structure is not a protein.