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酶是什么 酶是生物细胞所产生的一种有机催化剂,其本质是蛋白质。有些酶是蛋白质和核酸构成的,个别酶则仅仅是一种有催化作用的核酸。生命体生命活动的大部分化学变化是在酶催化下有条不紊地进行的。如果没有酶,也就没有新陈代谢,也就没有生命现象。 酶是由氨基酸组成的生物大分子化合物,具有两性电解质的性质,它会受到某些物理因素(加热、紫外线照射等)及化学因素(酸、碱、有机溶剂等)的作用而变性失活。酶的
What enzyme is an enzyme produced by biological cells is an organic catalyst, its essence is protein. Some enzymes are made of proteins and nucleic acids, and individual enzymes are just a catalytic nucleic acid. Most of the chemical changes in life-life activities are carried out systematically under the catalysis of enzymes. If there is no enzyme, there is no metabolism, there is no life phenomenon. Enzymes are biological macromolecules composed of amino acids, with ampholytic nature. They are denatured and inactivated by some physical factors (heating, ultraviolet radiation, etc.) and chemical factors (acids, bases, organic solvents, etc.) Enzymes