An example of an activation step in metabolism is
A) the hydrolysis of a triacylglycerol.
B) the cis-trans isomerization of retinal.
C) the formation of an acyl derivative of coenzyme A.
D) the formation of the peptide bond.

Question

Quizplus · Accepted Answer

The formation of an acyl derivative of coenzyme A is an activation step in metabolism, as it involves the activation of a fatty acid for subsequent breakdown in processes like beta-oxidation. This step requires energy, typically in the form of ATP, to form a high-energy thioester bond, making the fatty acid more reactive.

An Example of an Activation Step in Metabolism Is