coenzyme A substance that enhances the action of an enzyme to mediate and speed a chemical reaction. A number of the water-soluble vitamins, such as vitamins B1, B2, and B6, serve as coenzymes. See also enzyme.
coenzyme A substance that enhances the action of an enzyme to mediate and speed a chemical reaction. A number of the water-soluble vitamins, such as vitamins B1, B2, and B6, serve as coenzymes. See also enzyme.