82. Which of these statements about enzyme-catalyzed reactions is false? 
(A) The Vmax of a reaction can be attained at saturated concentration of substrate, even in the presence of a competitiveinhibitor. 
(B) At saturating levels of substrate, the rate of an enzyme-catalyzed reaction is proportional to the enzyme concentration. 
(C) The rate of a reaction decreases steadily with time as substrate is depleted. 
(D) The Michaelis-Menten constant Km equals the [S] at which v = 1/2 Vmax. 
(E) The activation energy for the catalyzed reaction is the same as for the uncatalyzed reaction, but the equilibrium constant ismore favorable in the enzyme-catalyzed reaction.