This implies that if NAD+ is not present, enzymes that need on it as a co-enzyme will not work properly.
Many enzymes need coenzymes, which are organic substances, for catalytic activity. They frequently contain vitamins or vitamin compounds. They can occasionally serve as catalysts in the absence of enzymes, however not as efficiently as when an enzyme is present.
Coenzymes support the actions of enzymes in turn. To assist enzymes in carrying out their tasks, they bind to them in a loose manner. Coenzymes are organic, non-protein molecules that help an enzyme's catalysis, or reaction.
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