An enzyme only catalyzes a reaction of one substance, or the same reaction of a chemically similar substance, and will never catalyze other substances and reactions. In most cases, reducing the enzyme concentration has a direct effect on the enzyme activity. The rate of chemical reactions in a biological environment is usually limited by a limited amount of environmental energy, but enzymes overcome this limitation because they enable a smaller amount of energy to activate more reactions. For example, ambient thermal energy associated with ambient temperature can be used as activation energy. This energy, called activation energy, is provided by the environment. In the living body, under the catalysis of a series of enzymes, it can be completed instantaneously at normal temperature and pressure at an unimaginable speed.Įnzymes assist in chemical reactions by allowing molecules to reduce the energy required to initiate the reaction. To speed up the reaction, it must be carried out above three hundred degrees Celsius, burning and oxidizing to release energy. If there is no catalyst, the catalytic process takes several years or longer under normal temperature and pressure conditions. For example, glucose in food reacts with oxygen to become carbon dioxide and water, and the energy released is the energy that maintains the body's body temperature and all life activities. The reason for this is that the rate of enzyme catalysis is very fast, which is thousands of times faster than the rate of reaction catalyzed by a chemical catalyst. In fact, almost all kinds of reactions occurring in living organisms are carried out by enzyme catalysis.Įnzymes are very important to life. Without enzyme catalysis, the most basic food digestion, oxygen breathing cannot be carried out, let alone other life activities. The life processes of every creature on the earth, from small to large, proliferating, living and dying, and metabolism, are all related to enzymes. Due to the action of the enzyme, the chemical reaction in the living body can be carried out efficiently and specifically under extremely mild conditions. Enzymes are a very important class of biocatalysts.
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