What is the role of the NADH + H+ and FADH2 that is synthesized?
1. NADH and FADH2 are high-energy compounds that are produced in the Krebs cycle.
2. They are oxidized in the electron transport chain.
3. Electrons released from these pass through various complexes (complex I to IV) in the electron transport chain and eventually get transferred to oxygen.
4. It generates a proton gradient across the inner membrane and drives the ATP synthesis by ATP synthase (Complex V).