Reaction 8: Oxidation
This slightly unusual oxidation reaction results in the removal of the hydrogens from saturated alkyl carbons to form an alkene. The hydrogen acceptor is the coenzyme FAD instead of the more usual NAD+. This will be significant when the ATP is tabulated from the electron transport chain, since this coenzyme is in the enzyme complex 2. Only 2 ATP result from this reaction in the electron transport chain.
This reaction is catalyzed by succinate dehydrogenase.