Two curves showing the rate versus substrate concentration are shown below for an enzyme-catalyzed reaction. One curve is for the reaction in the presence of substance X. The other curve is for data in the absence of substance X. Examine the curves and tell which statement below is false.
A) X is an activator of the enzyme.
B) The enzyme exhibits non-Michaelis-Menten kinetics.
C) X is likely an allosteric modulator.
D) X is a competitive inhibitor.

Question

Two curves showing the rate versus substrate concentration are shown below for an enzyme-catalyzed reaction. One curve is for the reaction in the presence of substance X. The other curve is for data in the absence of substance X. Examine the curves and tell which statement below is false. 
A) X is an activator of the enzyme. 
B) The enzyme exhibits non-Michaelis-Menten kinetics. 
C) X is likely an allosteric modulator. 
D) X is a competitive inhibitor.

Quizplus · Accepted Answer

The Answer of Two curves showing the rate versus substrate concentration are shown below for an enzyme-catalyzed reaction. One curve is for the reaction in the presence of substance X. The other curve is for data in the absence of substance X. Examine the curves and tell which statement below is false. 
A) X is an activator of the enzyme. 
B) The enzyme exhibits non-Michaelis-Menten kinetics. 
C) X is likely an allosteric modulator. 
D) X is a competitive inhibitor.

Two Curves Showing the Rate Versus Substrate Concentration Are Shown