Which property below is not a characteristic of enzymes? A. They are required only in large amounts. B. They can be altered reversibly during a reaction. C. They are used over and over again. D. They do not determine whether a reaction is exergonic or endergonic.

Answer: Option B) They can be altered reversibly during a reaction.

Explanation:

An enzyme is a proteinous substance that catalyzes a specific chemical reaction. It does not affect the equilibrium of the catalyzed reaction, and it always remain unaltered during the reaction process.

Thus, becoming altered is not a characteristic of enzymes