Enzymes are globular protein molecules known commonly as Biological Catalysts. The definition of a catalyst is a substance that can be used to speed up the rate of a chemical reaction while remaining unaffected and unchanged after the reaction. The enzyme's ability to act relies strongly upon the specific shape of the protein molecule, which is coiled into a precise three-dimensional shape. This specific shape is the cleft or depression, which other molecules (substrates) fit into perfectly; this part of the enzyme, is called the active site. …
