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Question 17N.3.SL.TZ0.a

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Date November 2017 Marks available [Maximum mark: 1] Reference code 17N.3.SL.TZ0.a
Level SL Paper 3 Time zone TZ0
Command term State Question number a Adapted from N/A
a.
[Maximum mark: 1]
17N.3.SL.TZ0.a

The diagram shows a simplified fermenter used in the production of penicillin.

[Source: Valero, F, del Rio, JL, Poch, M and Sola, C (John Wiley and Sons, 1992). Studies on Lipase Production by Candida rugosa Using On-line Enzymatic Analysis. Annals of the New York Academy of Sciences, 665, pp. 334–344.
doi: 10.1111/j.1749-6632.1992.tb42596.x]

State two conditions in the fermenter that would be monitored by the probes.

 

[1]

Markscheme

a. pH

b. temperature

c. oxygen levels

d. viscosity

e. foam

f. carbon dioxide

Accept any two conditions for the mark

[Max 1 Mark]

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