Exam (elaborations)
Specimen QP - Paper 2 AQA Biology A-Level.
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Figure 1 shows the apparatus used for measuring the rate of oxygen consumption in aerobic respiration by seeds. For the first 10 minutes, the tap attached to tube A was left open and the syringe from tube B was removed. Suggest three reasons why the apparatus was left for 10 minutes. [3 marks...
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