試題詳解

19. Which of the following statements about a plot of Vo vs. [S] for an enzyme that follows Michaelis-Menten kinetics is false?
(A) As [S] increases, the initial velocity of reaction Vo also increases.
(B)At very high [S], the velocity curve becomes a horizontal line that intersects the y-axis at Km.
(C) Km is the [S] at which V₀ = 1/2 Vmax.
(D) The shape of the curve is a hyperbola.

(E) The y-axis is a rate term with units of µm/min.