Enzymes are the biochemical catalysts.They have the following important characteristics;
1: All enzymes are globular proteins. 2: They increase the rate of reaction without themselves being used up. 3:Their presence does not affect the nature or properties of end products. 4: Small amount of an enzyme can accelerate chemical reactions. 5: They are very specific in their action; a single enzyme catalyzes only a single chemical reaction or a group of related reactions. 6: They are sensitive to even a minor change in pH, temperature and substrate concentration. 7: Some enzymes require a co-factor for their proper functioning. 8: They lower the activation energy of the reactions.
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