阿摩線上測驗
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 competitive inhibitor.
(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 is more favorable in the enzyme-catalyzed reaction.
(A) The Vmax of a reaction can be attained at saturated concentration of substrate, even in the presence of a competitive inhibitor.
(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 is more favorable in the enzyme-catalyzed reaction.
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統計： A(6), B(10), C(5), D(1), E(114) #2349877
統計： A(6), B(10), C(5), D(1), E(114) #2349877
