Question

which statement about enzymes is true? an enzyme functions to decrease the rate of a chemical reaction. enzymes are proteins that function as catalysts in nonliving things. each enzyme can catalyze many different biochemical reactions. enzymes and substrates fit together like a lock and key.

Explanation:

Enzymes are biological catalysts. The lock - and - key model describes how specific enzymes fit with specific substrates. Enzymes increase reaction rates, are in living things, and are usually specific to one or a few reactions.

Answer:

Enzymes and substrates fit together like a lock and key.