(30 pt) Organism A grows on substrate S and produces product P, which is the only substrate that organism B can utilize. The batch kinetics are BE 461/561 Bioprocess Engineering 2 Assume the following parameter values: μA = 0.18 hr-1, Ks = 0.42 g/L, μB = 0.29 hr-1 KP = 0.30 g/l, YXA/S = 0.3 g/g, YXB/P = 0.5 g/g YP/S = 1.0 g/g, YP/A = 4.0 g/g, S0 = 10 g/L 1) What is the type of interaction between A and B? Determine the behavior of this mixed culture in a chemostat in terms of dynamic changes in cell concentrations, substrate concentration and product P. 2) Plot S, P, XA, and XB at steady state versus dilution rate. 3) Discuss what happens to organism B as the dilution rate approaches the washout dilution rate for organism A.