**Fatty Acid Biosynthesis****Question 38:**The shown reaction is one of the four repeating steps during fatty acid biosynthesis. Which of the following statements is correct?**Diagrams and Reaction:**The diagram depicts a chemical reaction where a molecule is transformed into another with the involvement of two small molecules labeled as A and B. The initial and final molecular structures are given as follows:- **Initial Structure:** CH₃–C=O–CH₂–C=O–S–ACP- **Final Structure:** CH₃–C–OH–CH₂–C=O–S–ACPThe equation can be summarized with the chemical structures:- Initial molecule + A → Final molecule + B**Options:**A. The small molecule in box A is NADPH + H⁺B. It is the second reduction reaction during fatty acid biosynthesisC. Both A and BD. Neither A nor B**Explanation of Diagrams:**- The initial molecule is a chain with acetyl groups (C=O) linked to ACP (Acyl Carrier Protein).- The transformation shows a reduction where one of the acetyl groups (C=O) is reduced to an alcohol group (C–OH).- ACP serves as a swinging arm to facilitate the fatty acid biosynthesis process, holding and transferring intermediates.In conclusion, the correct answer must be determined based on the knowledge of fatty acid biosynthesis steps and the identification of the small molecules involved in this transformation.

The process through which all the living things, including plants and animals produce fatty acids,…

Answered: 38. The shown reaction is one of the…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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3. Palmitate is radiolabeled at the ¹¹ position using ¹4C. This is added to a liver homogenate. Trace the flow of the radiolabeled carbon as the palmitate is catabolized and then used for ketone body production. If a molecule can have the radiolabel in two different positions, make sure to show both possibilities. Present your work as a progression through the catabolic pathway, showing the product(s) from every round of B-oxidation and the subsequent steps to ketone body production that contain the radiolabel. Make sure each step also shows any needed cofactors and/or enzymes.
30. Which of the following enzymes are required for the shown reaction? COOH CH₂ CH₂ C=O HS-COA Cool CON CH COOH NAD+ NADH +H+ CH₂ I C=0 I S-COA A. a-ketoglutarate dehydrogenase B. dihydrolipoyl dehydrogenase C. Both A and B D. Neither A nor B
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Which of the following statements is true of the β - oxidation of an unsaturated fatty acid? a. It is identical to the β-oxidation of a saturated fatty acid. b. It involves an extra step to convert a cis double bond to a trans double bond. c. It involves an extra step to convert a trans double bond to a cis double bond. d. It is completely different from the β-oxidation of a saturated fatty acid.
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