Which statement best explains how enzymes speed up chemical reactions?

Question

Responses

Enzymes lower the activation energy of a reaction.
Enzymes lower the activation energy of a reaction.

Enzymes change shape during chemical reactions.
Enzymes change shape during chemical reactions.

Enzymes gain heat from chemical reactions.

Enzymes gain heat from chemical reactions.

Enzymes use light energy to speed up chemical reactions.

Answer 1

The statement that best explains how enzymes speed up chemical reactions is:

Enzymes lower the activation energy of a reaction.

Enzymes act as catalysts, reducing the energy required for a reaction to occur, which increases the reaction rate.