(a(i))[4]
Identify what moves in or out at W, X, Y and Z in Fig. 7.1.
(a(ii))[2]
Explain why the substance entering through Y is important in making the antibiotic.
(b)[3]
Explain why monitoring and adjusting the pH and temperature of the fermenter contents is important.
(c)[1]
Suggest one benefit of having the motor outside, instead of inside, the fermenter reaction vessel.