Graph B as shown in figure shows the effect of temperature on the activity of a human digestive enzyme.
In general, a reaction is sped up by increasing temperature and slowed down by decreasing temperature. But extremely high temperatures can denature an enzyme, causing it to lose its form and cease functioning.
Higher temperature typically results in more molecular collisions, which accelerates the rate of a reaction. The rate of an enzyme-catalyzed reaction can be increased by increasing the likelihood of a substrate colliding with the enzyme's active site.
An enzyme's internal energy rises in direct proportion to its temperature. The protein may get denatured as a result of this.
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