Which of the following statements about enzymes is not true?

Enzymes are biological catalysts that facilitate and speed up chemical reactions without being consumed or permanently altered in the process. The statement that enzymes are destroyed during chemical reactions is not accurate because, while some enzymes may be denatured or inactivated under extreme conditions, they generally remain intact after the reactions they catalyze.

Enzymes function best at specific optimum conditions, including temperature and pH, which allows them to maintain their structure and activity. The fact that most enzymes are proteins underscores their complex nature, as their specific structure is crucial to their function in catalyzing reactions. Thus, enzymes can be reused multiple times in various reactions, further emphasizing that they are not destroyed during their catalytic activity.