
Concept explainers
(a)
Interpretation:
Whether carboxylation occurs in the production of (1) acetyl CoA (2), acetyl ACP (3) malonyl CoA, or (4) malonyl ACP in the lipogenesis process has to be determined.
Concept introduction:
Lipogenesis is the process employed for the synthesis of fatty acid. The starting precursor for the synthesis is acetyl CoA. The enzyme employed for the process is fatty acid synthase. It is a multienzyme complex that ties the reaction responsible for the synthesis of fatty acid. The fatty acid is synthesized in two parts. In the first part, there is citrate-malate shuttle system and in the second part, there is a cyclic process to synthesize saturated fatty acid.
Acetyl ACP and malonyl ACP are needed to start the cyclic process for the synthesis of saturated fatty acid.
(b)
Interpretation:
Whether enzyme acetyl transferase is needed in the production of (1) acetyl CoA (2), acetyl ACP (3) malonyl CoA, or (4) malonyl ACP in the lipogenesis process has to be determined.
Concept introduction:
Lipogenesis is the process employed for the synthesis of fatty acid. The starting precursor for the synthesis is acetyl CoA. The enzyme employed for the process is fatty acid synthase. It is a multienzyme complex that ties the reaction responsible for the synthesis of fatty acid. The fatty acid is synthesized in two parts. In the first part, there is citrate-malate shuttle system and in the second part, there is a cyclic process to synthesize saturated fatty acid.
Acetyl ACP and malonyl ACP are needed to start the cyclic process for the synthesis of saturated fatty acid.
(c)
Interpretation:
Whether B vitamin biotin is involved in the production of (1) acetyl CoA (2), acetyl ACP (3) malonyl CoA, or (4) malonyl ACP in the lipogenesis process has to be determined.
Concept introduction:
Lipogenesis is the process employed for the synthesis of fatty acid. The starting precursor for the synthesis is acetyl CoA. The enzyme employed for the process is fatty acid synthase. It is a multienzyme complex that ties the reaction responsible for the synthesis of fatty acid. The fatty acid is synthesized in two parts. In the first part, there is citrate-malate shuttle system and in the second part, there is a cyclic process to synthesize saturated fatty acid.
Acetyl ACP and malonyl ACP are needed to start the cyclic process for the synthesis of saturated fatty acid.
(d)
Interpretation:
Whether acetyl CoA and ACP are the reactants in the production of (1) acetyl CoA (2), acetyl ACP (3) malonyl CoA, or (4) malonyl ACP in the lipogenesis process has to be determined.
Concept introduction:
Lipogenesis is the process employed for the synthesis of fatty acid. The starting precursor for the synthesis is acetyl CoA. The enzyme employed for the process is fatty acid synthase. It is a multienzyme complex that ties the reaction responsible for the synthesis of fatty acid. The fatty acid is synthesized in two parts. In the first part, there is citrate-malate shuttle system and in the second part, there is a cyclic process to synthesize saturated fatty acid.
Acetyl ACP and malonyl ACP are needed to start the cyclic process for the synthesis of saturated fatty acid.

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Chapter 25 Solutions
General, Organic, and Biological Chemistry Seventh Edition
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