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Which of the following statements describe how an enzyme affects a chemical reaction in an organism? They decrease the free energy in a chemical reaction by increasing the required activation energy.
They increase the free energy in a chemical reaction by lowering the required activation energy.
They increase the rate at which a chemical reaction occurs by lowering the required activation energy.
They decrease the rate at which a chemical reaction occurs by increasing the required activation energy.

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Which of the following statements describe how an enzyme affects a chemical reaction in an organism?...
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