試題詳解

32. Carbonic anhydrase has two substrates, carbon dioxide and bicarbonate, which are both converted to carbonic acid. Kinetic data for each is given below. While determining the kinetics ofas a substrate, how would the addition of CO₂ effect the reaction if the rate were measured by the disappearance of bicarbonate?

(A) CO₂ would increase the activity of the enzyme.
(B) CO₂would cause an apparent decrease in the K_m for  
(C) CO₂ would act as a competitive inhibitor.
(D) CO₂ would act as a noncompetitive inhibitor.
(E) CO₂ would act as an umcompetitive inhibitor.