all of the compounds that can be synthesized or broken down by chemical reactions inside the body are called

Answer;

Metabolites

Explanation; Metabolites are low molecular weight organic and inorganic compounds that are reactants, intermediates, or products of enzyme mediated biochemical reactions. Metabolites are produced during metabolism or that takes part in metabolism. Metabolism is the conversion in the body of one chemical compound into another compound. The resulting compound is called a metabolite.