What is the difference between an enzyme catalyst in a living body and a catalyst in chemistry?
enzyme susceptibility inactivation Chemical catalyst under certain conditions, due to poisoning and loss of catalytic capacity; and enzyme than the chemical catalyst is more fragile, more volatile activity. Any factor that makes the protein degenerate (to strengthen the acid, alkali, high temperature, etc.), can make the enzyme completely lost activity.
The enzyme has a high degree of specificity
in vivo enzyme activity is regulated in the body, the enzyme activity is regulated control. This is another important feature of the enzyme that distinguishes it from the chemical catalyst. There are many ways to regulate enzyme activity, such as feedback regulation, covalent modification, zymogen activation, allosteric regulation, hormone regulation, and so on.
Enzyme has a high catalytic efficiency (high efficiency) Generally speaking, the reaction rate of the alcohol catalyzed reaction rate is 106-1013 times higher than that catalyzed by the chemical catalyst
(Such as: high temperature, high pressure, strong acid, alkali, etc.), but the enzyme catalyzed reaction (enzymatic reaction) is generally at room temperature, atmospheric pressure (normal reaction), the reaction temperature of the chemical reaction, , Neutral pH, etc. under mild reaction conditions.
