Question

what is the effect of an enzyme on the energy of a chemical reaction?
a. enzymes increase the free energy of the products.
b. enzymes decrease the free energy of the reactants.
c. enzymes decrease the difference in energy between products and reactants.
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question 7 of 23

Explanation:

Enzymes are biological catalysts. They lower the activation - energy of a chemical reaction, but do not change the free - energy of reactants or products, nor the difference in energy between them. Activation energy is the energy barrier that must be overcome for a reaction to occur.

Answer:

None of the above options are correct. Enzymes lower the activation energy of a chemical reaction, not the free - energy of products (A is wrong), not the free - energy of reactants (B is wrong), and not the difference in energy between products and reactants (C is wrong).