What is the difference between Cofactor and Coenzyme?

A coenzyme is small, organic, non-protein molecules that carry chemical groups between enzymes. A cofactor is a non -protein chemical compound that tightly and loosely binds with an enzyme or other protein molecules. A coenzyme is a type of cofactor. The primary difference between a coenzyme and a cofactor is that coenzyme is a kind of cofactor that loosely connects to the enzyme, whereas cofactor sometimes bonds tightly to the enzyme.

Both coenzymes and cofactors are small, non- protein materials that play a pivotal role in the metabolic functions of the cell by assisting the enzymes in catalyzing the biochemical reactions.