In the electron transport chain, electrons from FADH2 are eventually used to reduce O2 into H2O. Experimentally, the proton motive force created by this process will generate 2 ATP molecules from ADP and Pi, using ATP synthase. From the information provided below, calculate the efficiency for the system
Efficiency = Energy stored/ Energy produced
FAD + 2 H + 2e = FADH2 Eo' = - 0.22
.5 O2 + 2 H + 2e = H2O Eo' = 0.82
ATP = ADP + Pi ΔGo' = 30.5 kJ/mol