4. Assume that the following fatty acid is synthesized from acetyl-CoA in the cytosol by fatty acid synthase. Which of the following statements is true? Coo- 15 13 11 wwww 16 14 12 10 A. The last two carbon atoms that are added to the fatty acid are carbon atoms #15 and #16 B. Synthesis of the fatty acid needs 8 molecules of NADPH + H* C. Both A and B D. Neither A nor B

Biochemistry
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Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
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### Fatty Acid Synthesis Question

**Question**: Assume that the following fatty acid is synthesized from acetyl-CoA in the cytosol by fatty acid synthase. Which of the following statements is true?

**Diagram Description**:
The diagram illustrates a linear fatty acid chain with 16 carbon atoms. The chain is labeled with carbon atoms numbered from 1 to 16. The structure indicates the following features:

- The carbon atoms are labeled starting from the terminal carboxyl (COO⁻) group, which is denoted as carbon 1.
- The sequence of carbon atoms increases toward the end of the chain, reaching carbon 16 at the other end.

**Answer Options**:
A. The last two carbon atoms that are added to the fatty acid are carbon atoms #15 and #16.

B. Synthesis of the fatty acid needs 8 molecules of NADPH + H⁺.

C. Both A and B.

D. Neither A nor B.

Choose the correct option based on the given fatty acid synthesis pathway and requirements. 

This question tests your understanding of the synthesis of fatty acids by fatty acid synthase and the utilization of cofactors.
Transcribed Image Text:### Fatty Acid Synthesis Question **Question**: Assume that the following fatty acid is synthesized from acetyl-CoA in the cytosol by fatty acid synthase. Which of the following statements is true? **Diagram Description**: The diagram illustrates a linear fatty acid chain with 16 carbon atoms. The chain is labeled with carbon atoms numbered from 1 to 16. The structure indicates the following features: - The carbon atoms are labeled starting from the terminal carboxyl (COO⁻) group, which is denoted as carbon 1. - The sequence of carbon atoms increases toward the end of the chain, reaching carbon 16 at the other end. **Answer Options**: A. The last two carbon atoms that are added to the fatty acid are carbon atoms #15 and #16. B. Synthesis of the fatty acid needs 8 molecules of NADPH + H⁺. C. Both A and B. D. Neither A nor B. Choose the correct option based on the given fatty acid synthesis pathway and requirements. This question tests your understanding of the synthesis of fatty acids by fatty acid synthase and the utilization of cofactors.
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