A-LevelBiologyCell membranes and transportMay/June 2012Paper 1 Q161 Mark
The diagram shows the water potential of three adjacent plant cells. [Figure 16.1] In which directions will there be net movement of water by osmosis?
ADiagram A showing arrows from -800kPa to -1200kPa, -1000kPa to -1200kPa, -800kPa to -1000kPa.
BDiagram B showing arrows from -1200kPa to -800kPa, -1200kPa to -1000kPa, -1000kPa to -800kPa.
CDiagram C showing arrows from -800kPa to -1000kPa, -1000kPa to -1200kPa, but not -800kPa to -1200kPa.
DDiagram D showing arrows from -800kPa to -1000kPa, -800kPa to -1200kPa, -1000kPa to -1200kPa.
✓ Correct Answer
The correct answer is D. This question tests the candidate's understanding of cell membranes and transport within the Biologysyllabus. The examiner's mark scheme requires...
📋 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...
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