AP BIOLOGY

Detailed explanation-1: -These are called competitive inhibitors. They resemble the substrates in their structure. If they bind before substrates, the substrates cannot bind to enzymes. This results in competitive inhibition leading to blocking of the active site.

Detailed explanation-2: -The competitive inhibitor binds to the active site and prevents the substrate from binding there. The noncompetitive inhibitor binds to a different site on the enzyme; it doesn’t block substrate binding, but it causes other changes in the enzyme so that it can no longer catalyze the reaction efficiently.

Detailed explanation-3: -Competitive inhibitors bind to the active site of the enzyme and prevent substrates from binding to enzyme. This prevents the enzyme-substrate reaction from happening, thereby decreasing the activity of enzymes; however, competitive inhibitors can be overcome by increasing the concentration of substrates.