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Which statement best explains how enzymes speed up chemical reactions?

Question options:

AEnzymes lower the activation energy of a reaction.

BEnzymes gain heat from chemical reactions.

CEnzymes change shape during chemical reactions.

DEnzymes use light energy to speed up chemical reactions.

Verified Answer :

snazzychazzy

Enzymes lower the activation for chemical reactions so they get a  faster Jump Start. Once this happens these reactions can happen a lot faster than similar reactions or the same reaction

Answer: The correct option is A) Enzymes lower the activation energy of a reaction.

Enzymes are also called as catalyst. They increase the rate of reaction by lowering the activation energy of the reaction. This means that they speed up the chemical reactions by doing so.

Activation energy is the minimum amount of energy required by a reactant to form an activated complex in order to initiate the chemical or nuclear reaction.

Thus, enzymes speed up the chemical reactions by lowering the activation energy.

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