Choose the correct description of an enzymatic reaction.

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An enzyme that catalyzes A + B → C + D accelerates the reaction velocity of A + B → C + D, but does not accelerate the reaction velocity of C + D → A + B.

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Enzymes can change the reaction velocity without directly interacting with substrates.

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Enzymes mainly consist of proteins. Coenzymes are small compounds that support the structure of the enzyme, but are not involved in the reaction.

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Enzymes decrease the activation energy of reactions, but do not affect the free-energy change, ΔG.

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Since enzymes catalyze chemical reactions in much the same manner as inorganic catalysts, the higher the reaction temperature, the higher the reaction velocity becomes.

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Choose the correct description of an enzymatic reaction.

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