DP Biology (last assessment 2024)
Question 17N.3.SL.TZ0.b
| Date | November 2017 | Marks available | [Maximum mark: 1] | Reference code | 17N.3.SL.TZ0.b |
| Level | SL | Paper | 3 | Time zone | TZ0 |
| Command term | Suggest | Question number | b | Adapted from | N/A |
b.
[Maximum mark: 1]
17N.3.SL.TZ0.b
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]
Suggest a reason that the fermenter is surrounded by a water jacket.
[1]
Markscheme
a. maintain constant temperature/insulation
b. cooling
[Max 1 Mark]
