| − | A '''catalyst''' is a substance that alters the activation energy of a [[chemical reaction]], thus facilitating its occurrence, but does not get consumed in the process.<ref>Wile, Jay L. ''Exploring Creation With Biology''. Apologia Educational Ministries, Inc. 1998.</ref> A [[protein]] that acts as a catalyst is called an [[enzyme]]. | + | A '''catalyst''' is a substance that alters the activation energy of a [[chemical reaction]], thus facilitating its occurrence, but does not get consumed in the process.<ref>Wile, Jay L. ''Exploring Creation With Biology''. Apologia Educational Ministries, Inc. 1998.</ref> A [[protein]] that acts as a catalyst is called an [[enzyme]]. The strength of a catalyst is directly related to its activation energy and the environment under which the reaction occurs. |