試題詳解

16. A plot of 1/v vs. 1/[S] for an enzyme catalyzed reaction gave a line with an equation of 1/v = 0.4/[S] + 0.2. The same enzyme with an inhibitor present gave a line with an equation of 1/v = 0.4/[S] + 0.8. Which of the following statements is true?
(A) the type of inhibition is competitive
(B) the type of inhibition is noncompetitive
(C) the type of inhibition is uncompetitive
(D) the Km with the inhibitor present has decreased
(E) None of the above.