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15. Describe the important properties of enzymes.
Answers (1)
Enzymes are proteinaceous substances which are capable of catalysing chemical reactions of biological origin without themselves undergoing any change. They are commonly called as biocatalysts. The properties of enzymes are as follows:
1. Enzymes are proteins by nature
2. Optimum temperature- An enzyme is active within a narrow range of temperature. The temperature at which an enzyme is most active is called the optimum temperature. The enzyme activity decrease above and below this temperature.
3. Optimum pH- Every enzyme has an optimum pH at which it is maximum active. Most of the intracellular enzymes work at neutral pH.
4. Enzymes are substrate specific i.e. one enzyme catalyses only a particular substrate. Every enzyme has specific sites called active sites for the binding of substrate.
5. Only a small quantity of enzyme is capable of forming the desired product
6. Enzyme activity is sensitive to certain chemicals called inhibitors or modulators.
7. Enzymes do not initiate a reaction. However, they just accelerate it.
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