Competitive inhibition of enzymes occurs when the inhibitor:
A)binds to the active site of the enzyme.
B)binds to the allosteric site of the enzyme.
C)inhibitor changes the shape of the enzyme.
D)inhibitor is acted upon by the enzyme.

Question

Quizplus · Accepted Answer

Competitive inhibition occurs when the inhibitor molecule binds to the active site of the enzyme, preventing substrate molecules from binding and reacting with the enzyme. As the name suggests, the inhibitor is directly competing with the substrate for binding to the same active site on the enzyme. This means that the inhibition can be overcome by increasing the concentration of the substrate, as there will be a higher chance of substrate molecules binding to the active site before the inhibitor.

Competitive Inhibition of Enzymes Occurs When the Inhibitor