Intermembrane Glycerol space glycerol 3-phosphate 3-phosphate (cytosolic) dehydrogenase Ubiquinone(q) FAD accepts electrons Fe-S Q from both nadh I and fadh in the FMN Fe-S respiratory chain Fe-S FAD (FAD) NADH NAD+ ETF: Q Succinate oxidoreductase ETF (FAD) Matrix acyl-CoA dehydrogenase FAD yI-COAUbiquinone (Q) accepts electrons from both NADH and FADH2 in the respiratory chain