4. (Exam 18) The table below shows measurements of the residual glucose concentration in a steady state chemostat at various dilution rates with sterile feed. (a) Estimating parameters, Ks and max. If cell death here is not negligible, explain which data point is most suspect for the simulation of these two parameters? (b) Determine max with another method. Increase the dilution rate in the chemostat to D=1.1 h1, and after a while, S>Ks and Washout occurs. Biomass concentration decreases with time, shown in the table below (hints: biomass balance for unsteady state)