Rate of an Enzyme-Catalyzed Reaction as a Function of Varying

question 57

Multiple Choice

Rate of an enzyme-catalyzed reaction as a function of varying reactant concentration, with the concentration of enzyme constant.
For the enzyme-catalyzed reaction shown in the figure, if the initial reactant concentration is 1.0 micromolar, which of these treatments will cause the greatest increase in the rate of the reaction?

• A) doubling the activation energy needed
• B) cooling the reaction by 10°C
• C) doubling the enzyme concentration
• D) increasing the concentration of reactants to 10.0 micromolar, while reducing the concentration of enzyme by 1/2

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