Acetyl-CoA has been found to undergo all of the following reactions EXCEPT which one?
A) Condensation with acetoacetyl-CoA to form beta-hydroxy-beta-methyl glutaryl-CoA.
B) The ATP dependent fixation of carbon dioxide to form malonyl-CoA.
C) The NAD dependent fixation of carbon dioxide to form pyruvate and free CoA.
D) The reversible transfer of the acetyl group to acyl carrier protein (ACP) to form acetyl-ACP.
E) Condensation with glyoxylate to form malate and free CoA in plants.

Question

Quizplus · Accepted Answer

Acetyl-CoA cannot undergo NAD-dependent fixation of carbon dioxide to form pyruvate and free CoA. This is because NAD cannot fix carbon dioxide; it requires a carboxylase enzyme for this reaction. The other reactions mentioned are all known to occur with acetyl-CoA.

Acetyl-CoA Has Been Found to Undergo All of the Following