Concept explainers
(a)
Interpretation:
Whether the statement “both CoA and ACP contain a 2-ethanethiol structural subunit” about the molecules CoA and ACP is true or false has to be identified.
Concept introduction:
The β-oxidation pathway is defined as a repetitive series of four biochemical reactions in which acyl CoA is degraded to acetyl CoA by the removal of two carbon atoms at a time. NADH and FADH2 are also produced in this pathway.
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 protein carrier in the β-oxidation pathway is CoA and protein carrier in lipogenesis is ACP.
(b)
Interpretation:
Whether the statement “CoA, but not ACP, contains a pantothenic acid structural subunit” about the molecules CoA and ACP is true or false has to be identified.
Concept introduction:
The β-oxidation pathway is defined as a repetitive series of four biochemical reactions in which acyl CoA is degraded to acetyl CoA by the removal of two carbon atoms at a time. NADH and FADH2 are also produced in this pathway.
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 protein carrier in the β-oxidation pathway is CoA and protein carrier in lipogenesis is ACP.
(c)
Interpretation:
Whether the statement “ACP is a much larger molecule than CoA” about the molecules CoA and ACP is true or false has to be identified.
Concept introduction:
The β-oxidation pathway is defined as a repetitive series of four biochemical reactions in which acyl CoA is degraded to acetyl CoA by the removal of two carbon atoms at a time. NADH and FADH2 are also produced in this pathway.
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 protein carrier in the β-oxidation pathway is CoA and protein carrier in lipogenesis is ACP.
(d)
Interpretation:
Whether the statement “ACP, but not CoA, has an –SH
Concept introduction:
The β-oxidation pathway is defined as a repetitive series of four biochemical reactions in which acyl CoA is degraded to acetyl CoA by the removal of two carbon atoms at a time. NADH and FADH2 are also produced in this pathway.
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 protein carrier in the β-oxidation pathway is CoA and protein carrier in lipogenesis is ACP.
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Chapter 25 Solutions
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