AP BIOLOGY

Detailed explanation-1: -An inhibitor may bind to an enzyme and block binding of the substrate, for example, by attaching to the active site. This is called competitive inhibition, because the inhibitor “competes” with the substrate for the enzyme.

Detailed explanation-2: -Explanation: Competitive inhibitors bind to the active site of the enzyme, blocking substrate entry. Increasing the concentration of the substrate helps overcome this type of inhibition by increasing the proportion of substrate to inhibitor in solution.

Detailed explanation-3: -6. Blocking of enzyme action by blocking its active site is called as: Allosteric inhibition.

Detailed explanation-4: -In noncompetitive inhibition, the inhibitor binds at an allosteric site separate from the active site of substrate binding. Thus in noncompetitive inhibition, the inhibitor can bind its target enzyme regardless of the presence of a bound substrate.

Detailed explanation-5: -Competitive Inhibitors A competitive inhibitor competes with substrate for binding to an active site. When the inhibitor occupies the active site, it forms an enzyme-inhibitor complex and the enzyme cannot react (Fig.