Acetyl-CoA combines with oxaloacetate to form:
Correct answer: B. Citrate
- A. Succinyl-CoA
- B. Citrate
- C. α-Ketoglutarate
- D. Malate
Explanation
Acetyl-CoA (2C) combines with oxaloacetate (4C) via citrate synthase to form citrate (6C), the first step of the Krebs cycle.
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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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