Biology for IGCSE & O level - Enzymes (Section 2 - No. 25)

In a typical enzyme-catalyzed reaction, what is the role of the enzyme?
To be consumed in the reaction.
To provide energy for the reaction.
To lower the activation energy of the reaction.
To act as a reactant in the reaction.

Explanation

Enzymes reduce the amount of energy required for the reaction to occur.

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