Which statement about enzymes is true? A. An enzyme functions to decrease the rate of a chemical reaction. B. Enzymes are proteins that function as catalysts in nonliving things. C. Each enzyme can catalyze many different biochemical reactions. D. Enzymes and substrates fit together like a lock and key.

It would be answer D. because enzymes are a type of catalysts that function in living things and a substrate is a reactant that an enzyme catalyzes. An enzyme and substrate fit together perfectly like a lock and key as it catalyzes and produces a product

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aliasger2709 aliasger2709 · Answer 2 · 2022-06-09T14:30:52+02:00

Enzymes are proteins that are like keys and fit into the lock called substrate to carry out the reactions. Thus, option D is accurate.

What are enzymes?

Enzymes are involved in metabolic reactions and act as catalysts by speeding up the reactions. They do not decrease the activity function of the rate of reactions in the living things.

A specific type of enzyme can catalyst only a single type of substrate and are unique for a reaction. Enzymes and substrates act as lock and key that fits together to carry out the reaction.

The active site of the enzymes is unique and fits into the substrate to form the complex resulting in a product formation.

Therefore, option d. enzyme and substrate are lock and key.

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