Which statement best describes a key property of enzymes regarding their use in repeated catalytic cycles?

• A. An enzyme can be reused only if it binds covalently to the substrate during catalysis.
• B. An enzyme can catalyze only one substrate molecule and is irreversibly altered after a single reaction cycle.
• C. An enzyme can be reused to catalyze reactions with new substrate molecules because it is not permanently consumed during the reaction.
• D. An enzyme must be resynthesized after each reaction because it is converted into product along with the substrate.

Answer: (C)