Use the Following Information to Answer the Question Below

question 13

Multiple Choice

Use the following information to answer the question below.

Rate of an enzyme-catalyzed reaction as a function of varying reactant concentration, with the concentration of enzyme constant
In the figure, why does the reaction rate plateau at higher reactant concentrations?

• A) Feedback inhibition by product occurs at high reactant concentrations.
• B) Most enzyme molecules are occupied by substrate at high reactant concentrations.
• C) The reaction nears equilibrium at high reactant concentrations.
• D) The rate of the reverse reaction increases at high reactant concentrations.