Which of the following is the best description of a precursor metabolite?

Question

Quizplus · Accepted Answer

A precursor metabolite is a small molecule that is required for the biosynthesis of macromolecules, such as amino acids, nucleotides, and fatty acids. These small molecules act as starting substrates in metabolic pathways, and provide the carbon skeletons, energy, and reducing power needed for the formation of complex biomolecules. Therefore, choice D, which describes a carbon skeleton used as a starting substrate, is the best description of a precursor metabolite.

Which of the Following Is the Best Description of a Precursor