An increase in temperature can hamper the enzymatic activity because
Enzyme is denatured
An enzyme’s shape changes during denaturation
Enzyme can no longer bind its substrate(s) efficiently
All of these
Optimal Temperature:
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If the temperature rises beyond a certain point, enzyme activity eventually levels out and then declines rapidly because the enzyme is denatured. An enzyme’s shape changes during denaturation. Enzyme can no longer bind its substrate(s) efficiently