試題詳解

42. The process of β-oxidation of saturated fatty acids involves a repeated sequence of four reactions which do not include:
(A) Stearoyl-CoA desaturase introduces double bonds in the long-chain fatty acids.
(B) Enoyl-CoA hydratase adds an OH group at theβ carbon position of the fatty acid.
(C) L-hydroxyacyl-CoA dehydrogenase and NAD⁺ oxidize the newly generated β-hydroxyl group to produce a ketoacyl-CoA derivative.
(D) Ketoacyl thiolase transfers a two-carbon unit from β-ketoacyl-CoA to another CoA molecule to form acetyl-CoA.
(E) One of the four acyl-CoA dehydrogenases introduces a double bond at the a carbon of the fatty acid.