6. Competitive inhibitors form covalent bonds with the active center of the enzyme D interact with the allosternic center D interact with the active site of the enzyme a reduce Km reduce Vmax

Competitive inhibitors interact with the active site of the enzyme. They compete with the substrate for binding to the active site, which can reduce the enzyme's activity and decrease the Vmax. Competitive inhibitors do not form covalent bonds with the active center of the enzyme, nor do they interact with the allosternic center. They do not reduce Km.