Acetyl CoA is completely oxidized to carbon dioxide and liberates:
Correct answer: D. ATP, NADH and FADH
- A. NADH and FAD
- B. NADP and FADP
- C. ATP
- D. ATP, NADH and FADH
Explanation
The Krebs cycle fully oxidizes acetyl-CoA to CO₂, producing ATP, FADH₂, and NADH. These energy carriers then enter the electron transport chain for oxidative phosphorylation, where abundant ATP is generated using oxygen.
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About Bioenergetics
Cellular respiration explains how cells release energy from glucose through glycolysis, the link reaction, Krebs cycle and electron transport chain. It includes ATP production, substrate-level and oxidative phosphorylation, aerobic versus anaerobic respiration, and the roles of mitochondria, oxygen and fermentation in energy transfer.
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