In the figure below, the black line represents an enzyme-catalyzed reaction and the gray line represents that same reaction after adding 0.05 mM of factor X. Factor X can best be described as: A.a noncompetitive inhibitor.B.an allosteric activator.C.a competitive inhibitor.D.

...................inhibitors are molecules/compounds capable of binding to a region of the enzyme other than the active site.UncompetitiveNon-competitiveCompetitiveOver-competitive

The KM of an enzyme is always decreased by which class of inhibitor?A.MixedB.NoncompetitiveC.CompetitiveD.Uncompetitive

Compound I was identified as a novel allosteric inhibitor of Enzyme X.  The measured inhibitor dissociation constant Ki between the inhibitor and Enzyme X was found to be 54 μM without any substrate present.  With saturating amounts of nonreactive substrate analog, the measured Ki was found to be 76 μM.  Compound I is best described as:A.a mixed inhibitor that results in a lower apparent Km relative to the uninhibited enzyme.B.a mixed inhibitor that results in the same apparent Km relative to the uninhibited enzyme.C.a mixed inhibitor that results in a higher apparent Km relative to the uninhibited enzyme.D.a purely noncompetitive inhibitor that only lowers the apparent Vmax relative to the uninhibited enzyme.

A substance that reduces the activity of an enzyme by entering the active site in place of the substrate, whose structure it mimics.Group of answer choicesnoncompetitive inhibitorcompetitive inhibitorNext

Name the inhibition where the end product of the biosynthetic pathway inhibits the activity of the first enzyme.  Competitive inhibition   Feedback repression   Feedback inhibition   Noncompetitive inhibition   Allosteric inhibition