Scene at the Signing of the Constitution of the United States. The Constitutional Convention (also known as the Philadelphia Convention, the Federal Convention, or the Grand Convention at Philadelphia) took place from May 25 to September 17, 1787, in Philadelphia, Pennsylvania.
User: The substance on which the enzyme acts is called the _____. enzyme substrate catalyst bufferWeegy: The substance on which the enzyme acts is called the substrate. akoine|Points 2078|User: _____ modify the rate of enzyme activity. Cells Carbohydrates Nucleic acids Weegy: The answer is cells.
In a chemical reaction the actual reactants are also called the starting materials or interactants. These are the materials necessary for the reaction to happen and underg â¦ o chemical change. In an enzyme catalyzed reaction what is the reactant called? Generally in an enzyme-catalyzed reaction, the reactant is called the substrate, which in association with the enzyme forms the product.