酶是一类具有生物活性的蛋白质,对生物体内的生化过程具有催化作用,其催化效果远远超过常规的化学催化剂。某些在体外很难进行的化学反应在体内却极易发生,这是靠酶的催化作用来完成。酶作为生物催化剂,通常具有下述四种显著的特性:(1)加快某一反应的速度;(2)具有化学选择性——即从混合物中选择 Enzymes are a class of bioactive proteins that have a catalytic effect on the biochemical processes in the organism and their catalytic effects far exceed the conventional chemical catalysts. Some of the chemical reactions that are difficult to perform in vitro are extremely prevalent in the body and are accomplished by the enzyme’s catalytic action. Enzymes, as biocatalysts, typically have the following four distinct properties: (1) to speed up a reaction; (2) to be chemically selective - to choose from a mixture