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.
In living cells, WHAT serve as biological catalysts. Each acts on a specific substance called the enzyme's substrate and each catalyzes only one reaction. As catalysts, enzymes typically accelerate chemical reactions. The enzyme molecule has an active site, a region that will interact with a specific chemical substance.
Enzymes are said to be substrate specific. A substrate is a molecule that temporarily binds with the. enzyme at an area on the enzyme called the active site. Each enzyme catalyzes one specific reaction. because there is only one type of substrate molecule with the exact shape that will fit in the enzymeâs. active site.