What is a coenzyme?
A) an organic cofactor that directly participates as one of the substrates in an enzymatic reaction
B) a metal, such as zinc, that participates in enzymatic reactions
C) a term regarding enzymatic reactions that is synonymous with "cofactor"
D) any ligand that binds to a specific site on a protein receptor
E) an inorganic molecule that catalyzes enzymatic reactions

Question

Quizplus · Accepted Answer

A coenzyme is an organic molecule that binds to an enzyme and helps it function. Coenzymes often act as carriers of small molecules or electrons during enzymatic reactions. Unlike substrates, coenzymes are not permanently altered during the reaction and can be used multiple times.

What Is a Coenzyme