What are coenzyme and from what are they derived?

Coenzymes are organic molecules that assist enzymes in catalyzing biochemical reactions by acting as carriers for chemical groups or electrons. They are often derived from vitamins, such as B vitamins, which are essential nutrients that the body cannot synthesize on its own. Common examples of coenzymes include NAD+ (derived from niacin) and coenzyme A (derived from pantothenic acid). These molecules enable enzymes to function effectively, playing a crucial role in metabolic processes.