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.
Enzymes are highly selective catalysts, meaning that each enzyme only speeds up a specific reaction. The molecules that an enzyme works with are called substrates. The substrates bind to a region on the enzyme called the active site. There are two theories explaining the enzyme-substrate interaction.