In respiratory electron transport chain, the third ATP is produced by the oxidation of:
Correct answer: D. Cytochrome - a3
- A. NADH
- B. Cytochrome - b
- C. Cytochrome - c
- D. Cytochrome - a3
Explanation
When cytochrome a3 is oxidized and O2 is reduced to form water, electrons release some free energy to come to the lower energy state and as a result ADP is phosphorylated into ATP by inorganic phosphate using that free energy.
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