Which of the following types of inhibitors binds to the active site of an enzyme? Select one: a. Competitive b. All of them C. Uncompetitive d. Noncompetitive
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- Which of the following statements about Competitive and noncompetitive inhibition is false? a. A noncompetitive inhibitor does not change the Km of the enzyme. b. A competitive inhibitor does not change the Vmax of the enzyme c. The noncompetitive inhibitor can bind either free enzyme or the enzyme–substrate complex. d.A competitive inhibitor decreases the apparent Km for a given substrate.What is it called when the final product of an enzymatic pathway acts as a modulator for the first enzyme in the pathway? a. isoenzyme activation b. relative specificity c. feed back inhibition d. competitive inhibitionWhere does inhibitor binds on enzyme in mixed inhibition? A Allosteric site B Binds on substrate C At active site D Does not bind on enzyme
- An inhibitor that reversibly binds to a site other than the enzyme's active site is called a(n) a. noncompetitive inhibitor b. competitive inhibitor c. antagonisitc inhibitor d. antibioticThe Vmax of an enzymatic reaction can be increased by _______________. A. Increasing the enzyme concentration only. B. Increasing the substrate concentration only. C. Removing a non-competitive inhibitor. D. Removing a competitive inhibitor. E. A and C F. A, C, and DAn allosteric site is the location on an enzyme’s surface wherea. the substrate binds.b. the signal molecule binds.c. catalysis takes place.d. ATP binds.
- What is true about a competitive inhibitor of an enzyme? You can choose more than one a. it binds the active site b. it binds an allosteric site c. it physically blocks the substrate d. it warps the active site e. it can be overcome with large amounts of substrateWhich statement is true about noncompetitive inhibition? a. Binding of the inhibitor occurs to the active site of the enzyme b. Inhibition is irreversible c. Increasing the amount of substrate does not reverse the inhibition d. We talked about it in context of aspirin inhibiting blood clottingOne of the hallmarks of competitive inhibition is that there is constant competition betweenthe substrate and the inhibitor for binding to the enzyme active site.a) If [inhibitor] >> [substrate], which compound “wins” (i.e., occupies the active site a greaterpercentage of the time)?b) If [substrate] >> [inhibitor], which compound “wins” (i.e., occupies the active site a greaterpercentage of the time)?
- Choose the best answer The active site of an enzyme is the place where the following happens: a)The enzyme-substrate complex forms and the reaction occurs at the active site. b)The enzyme substrate complex forms here. c)The catalytic reaction happens here. d)Allosteric regulation of enzyme rate occurs here. e)All of these are correct.The active site of an enzymea. is identical in structure for all enzymes.b. is the part of the enzyme where its substrate can fit.c. can be used only once.d. is not affected by environmental factors, such as pH and temperature.Choose the best answer for the following question? In which of the following does an inhibitor bind to a site other thanthe active site of the enzyme?a. competitive inhibitionb. noncompetitive inhibitionc. redox reactionsd. None of these are correct.