Krebs Cycle starts with the formation of a 6-carbon atom compound by a chemical reaction between:
Correct answer: C. Oxaloacetic Acid and Acetyl-CoA
- A. Succinic Acid and Acetyl-CoA
- B. Fumaric Acid and Pyruvic Acid
- C. Oxaloacetic Acid and Acetyl-CoA
- D. Malic Acid and Acetyl-CoA
Explanation
Krebs cycle starts with the formation of a six-carbon compound by the reaction between oxaloacetic acid and acetyl CoA. The 6-carbon compound formed is citric acid and this reaction is catalyzed by citrate synthase.
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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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