Usually, a(n) inhibitor forms a covalent bond with an amino acid side group within the active site, which prevents the substrate from entering the active site or prevents catalytic activity.

Enzyme Inhibitor

Explanation:

a(n) irreversible is right answerAn irreversible inhibitor will bind to a chemical with the enzymes that no other catalyst complexes can formIt will tie to the catalyst utilizing a covalent bond at the dynamic site which along these lines makes the chemical denaturedA case of an irreversible inhibitor is diisopropyl fluorophosphate which is available in nerve gas  There are three sorts of reversible protein inhibitors competitive inhibitors, uncompetitive inhibitors, and noncompetitive inhibitors

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The answer is c : ) hope this answered your question!