Question

5) Explain how many ATP’s are produced from 4 full O₂ being reduced to H₂O. In your answer include the number of NADH needed, protons pumped and how the H⁺ are used to produce an ATP.

Answer 1

5. The number of ATP molecules produced due to reduction of 4 full O2 to H2O is 20 ( if 2.5 ATP is considered for 1 NADH) or 24 (if 3 ATP is considered for 1NADH)

Please refer to the attachments for the calculations.

The protein gradient produced due to pumping of protons through complex I, III and IV drives the production of ATP from ADP by ATP synthase.