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Plan it with CORMMSS: Design an investigation (Logic Lab).
6.8 Industrial fermenters
Exam question
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Explain how conditions in an industrial fermenter are controlled to give a high yield.
(5)Write your answer, then press Show model answer and tick each mark point your answer makes. Your answer is not saved.
Total for this question: 5 marks
6.8 Industrial fermenters
Exam question
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Why does a fermenter have a water jacket?
(1)Total for this question: 1 mark
6.8 Industrial fermenters
Exam question
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Explain why a fermenter is sterilised before use.
(2)Write your answer, then press Show model answer and tick each mark point your answer makes. Your answer is not saved.
Total for this question: 2 marks
6.8 Industrial fermenters
Exam question
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Explain why the contents of a fermenter are stirred.
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Total for this question: 2 marks
6.8 Industrial fermenters
Exam question
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Explain why air is pumped into a fermenter.
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Total for this question: 2 marks
6.8 Industrial fermenters
Exam question
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Explain why the pH must be monitored.
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Total for this question: 2 marks
6.8 Industrial fermenters
Exam question
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State one product made in industrial fermenters.
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Total for this question: 1 mark
6.8 Industrial fermenters
Exam question
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Explain why the temperature in a fermenter would rise without cooling.
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Total for this question: 2 marks
6.8 Industrial fermenters
Exam question
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Suggest why the air entering a fermenter is filtered.
(2)Write your answer, then press Show model answer and tick each mark point your answer makes. Your answer is not saved.
Total for this question: 2 marks
6.8 Industrial fermenters
Exam question
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Describe how temperature is monitored and kept constant.
(2)Write your answer, then press Show model answer and tick each mark point your answer makes. Your answer is not saved.
Total for this question: 2 marks
6.8 Industrial fermenters
Exam question
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Explain why microorganisms are grown in fermenters rather than open tanks.
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Total for this question: 2 marks
6.8 Industrial fermenters
Exam question
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Identify the fermenter component used to add nutrients.
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Total for this question: 1 mark
6.8 Industrial fermenters
Exam question
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Suggest why penicillin is extracted only after the microorganisms have grown for a while.
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Total for this question: 2 marks
6.8 Industrial fermenters
Exam question
Mark points shown after marking
Explain why aseptic precautions increase yield.
(2)Write your answer, then press Show model answer and tick each mark point your answer makes. Your answer is not saved.
Total for this question: 2 marks
