You Are Working with an Enzyme and Wish to Determine

Multiple Choice

You are working with an enzyme and wish to determine its saturation point.You note that the reaction rate increases slowly at first, then increases dramatically over a narrow range of substrate concentrations, and then levels off, creating a sigmoid reaction curve.It is likely that this enzyme is regulated by

A) temperature.
B) pH.
C) an allosteric mechanism.
D) a competitive inhibitor.
E) a coenzyme.