What is the function of a catalyst in a chemical reaction?

A. It ensures that the reaction can proceed only in one direction, from reactants to products.
B. It lowers the activation energy of the reaction.
C. It is split into individual molecules that are products of the reaction.
D. It generates heat that makes the reaction proceed.
E. It changes the energy content of the reactants.


Answer: B

Anatomy & Physiology

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