2. The initial velocity of an enzyme-catalyzed reaction was measured at various substrate concentrations in the absence and in the presence of inhibitor Y at a fixed concentration. The results are shown below.
(a) Based on the data, how does inhibitor Y affect Vmax and Km? (4%)??
(b) What type of inhibition does inhibitor Y most likely exhibit? Explain briefly using the kinetic data. (4%)??
(c) If the substrate concentration were increased to a very high level, would the inhibition by Y be overcome? Why or why not? (2%)??