Biology for IGCSE & O level - Enzymes (Section 3 - No. 18)
What is the effect of increasing temperature on the rate of an enzyme-catalyzed reaction, up to the optimum temperature?
The rate of reaction decreases.
The rate of reaction is unaffected.
The rate of reaction increases.
The enzyme denatures.
Explanation
Increasing temperature increases the kinetic energy of the molecules, leading to more collisions and thus a faster reaction rate until the optimum temperature is reached.
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