An 18-carbon fatty acid is converted into how many acetyl-CoA molecules?
Correct answer: C. 9
- A. 8
- B. 18
- C. 9
- D. 36
Explanation
An 18-carbon fatty acid, when broken down through beta-oxidation, produces 9 acetyl-CoA molecules. This is because each acetyl-CoA molecule contains two carbon atoms, making the calculation straightforward: 18 divided by 2 equals 9. The incorrect options (8, 18, and 36) do not align with the two-carbon structure of acetyl-CoA; thus, they cannot be derived from an 18-carbon fatty acid.
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