Question

3.) when the substrate binds to the active site of the enzyme, the enzyme and the reactant become one unit called the

enzyme complex

enzyme - reactant complex

enzyme - product complex

enzyme - substrate complex

Explanation:

When a substrate binds to the active - site of an enzyme, the resulting unit is called the enzyme - substrate complex. This is a fundamental concept in enzyme - catalyzed reactions where the substrate first attaches to the enzyme's active site to initiate the reaction.

Answer:

D. enzyme - substrate complex