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Biology · Oct / Nov 2020 · Paper 12 · Question 27

5090Biotechnology

A fermenter is used to produce penicillin. Why is continuous stirring necessary during the process of fermentation?

  1. Ato keep the Penicillium in contact with fresh oxygen and nutrients
  2. Bto move the Penicillium to the bottom of the fermenter
  3. Cto move the Penicillium to the top of the fermenter
  4. Dto stop the Penicillium reacting with the wall of the fermenter

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Correct answer: A. to keep the Penicillium in contact with fresh oxygen and nutrients

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