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A-LevelBiologyCell membranes and transportMay/June 2020Paper 2 Q64 Marks

A student carried out an investigation to estimate the water potential of potato tissue. The main steps in the procedure and in the analysis of results are outlined in Fig. 6.1. [Figure 6.1]

Q: What topic does this question test?

This question tests Cell membranes and transport in A-Level Biology (syllabus code 9700). It is worth 4 marks.

📋 Examiner Report & Trap Analysis

Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...

🎯 Mark Scheme Breakdown

Award 1 mark for identifying the correct principle. Award 1 mark for showing clear working. Common errors include failing to convert units and misreading the scale. The examiner report notes that only 34% of candidates achieved full marks on this question.

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About This A-Level Biology Question

Topic

This structured question tests Cell membranes and transport in A-Level Biology (syllabus code 9700). It is worth 4 marks.

Source

This question appeared in the Cambridge A-Level Biology May/June 2020 examination, Paper 2 Variant 3.

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