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Catalyzing Chemical Reactions

Enzymes are one of the key proteins in cells and facilitate chemical reactions. How does a typical enzyme catalyze a chemical reaction?

A. It eliminates the activation energy of a chemical reaction.

B. It reduces the activation energy of a chemical reaction.

C. It provides additional energy to the chemical reaction.

D. It contains a covalently bound substrate, which is needed for the chemical reaction.

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http://mcatquestionoftheday.com/biology/catalyzing-chemical-reactions/<http://mcatquestionoftheday.us4.list-manage.com/track/click?u=d3318065969b7c08ead5d4c4d&id=f66fc77463&e=61d7ba7392>