An 18 carbon fatty acid is converted into how many acctyl-CoA molecules?
Correct answer: C. 9
- A. 18
- B. 16
- C. 9
- D. 20
Explanation
When an 18-carbon fatty acid is broken down by beta-oxidation, it is first converted into 9 molecules of acetyl-CoA, which can then enter the citric acid cycle (also known as the Krebs cycle) to produce ATP.
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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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