Question

multiple choice question
what is the function of enzymes?
to store energy released during some metabolic reactions
to speed up the rates of metabolic reactions
to aid in the transport of molecules through body fluids
to provide the information needed to produce protein molecules
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Explanation:

Enzymes are biological catalysts. They lower the activation - energy of metabolic reactions, thereby increasing the rate at which these reactions occur. They do not store energy, aid in molecule transport through body fluids, or provide information for protein production.

Answer:

To speed up the rates of metabolic reactions