in a newly discovered mammalian species, the electron transport chain (etc) operates a bit differently than the one we have studied in class. scientists found that the number of protons pumped in one of etc complexes is different. otherwise, everything else behaves like a normal etc system. a. if 8h /fadh 2 are pumped out and a total of 4 atp per 3 fadh 2 are formed, how many c rotor subunits are there in the atp synthase of this mammalian species? (5 pts)