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Cell level systems practice questions

Practise mixed syllabus-aligned questions for Cell level systems. Aligned to OCR Gcse Combined Science A Gateway.

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A student investigates the rate of respiration in yeast using a respirometer at room temperature. They set up two identical flasks, A and B. Flask A contains glucose solution and yeast. Flask B contains glucose solution, yeast, and a layer of paraffin oil on top of the solution. Explain the type of respiration occurring in each flask and predict which flask will produce carbon dioxide more rapidly, justifying your answer. You should also state one safety precaution the student should take. [6 marks]

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Cell level systems questions | OCR GCSE Combined Science A Gateway | ExamCompanion