Which Is Appropriate for Initial Rate Method Experiments to Analyze

Multiple Choice

Which is appropriate for initial rate method experiments to analyze an enzyme-catalyzed reaction?

A) Substrate concentration is constant and the rate is measured at different concentrations of enzyme.
B) Enzyme concentration is constant and the rate is measured at different substrate concentrations.
C) The substrate and enzyme concentrations are varied inversely with respect to one another and the rate is measured.
D) Both enzyme and substrate concentrations are constant.The temperature is varied and the rate is measured.
E) All of the above.