Oxaloacetate combines with which molecule to enter the Krebs cycle again?
Correct answer: D. Acetyl coA
- A. ATP
- B. NADPH
- C. FAD
- D. Acetyl coA
Explanation
Acetyl CoA combines with oxaloacetate to form citrate, which marks the beginning of the Krebs cycle. This step is also known as the condensation reaction, and it allows oxaloacetate to re-enter the Krebs cycle for further energy production.
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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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