Which of the following statements is true of enzymes

A. they change shape after a reaction

B. They don’t provide an active site for substrates to bind in a reaction

C. They’re unusable after a reaction

D. They act on a specific type of substrate in a reaction

Option D

They act on a specific type of substrate in a reaction is true of enzymes

Explanation:

The enzyme‘s existing position adheres to the substrate. Enzymes increase chemical reactions by inducing substrates collectively in an optimal familiarization, thus constituting a supreme chemical condition for the reaction to transpire.

A reactant in a chemical reaction has denominated a substrate when operated superimposed by an enzyme. There may be one or further substrates for all kinds of enzymes, based on the appropriate chemical reaction. In remarkable reactions, a single-reactant substrate is split down into various products. In others, pair substrates may evolve unitedly to design one more abundant molecule.

b is the correct