Diagrams 1 and 2 show how the transverse section through a leaf changes when one solution W to a different solution Y. [Diagram 1 showing a cell in solution W, Diagram 2 showing a cell in solution Y] How has the water potential changed in diagram 2?
✓ Correct Answer
The correct answer is A: difference in cells at X in solution Y compared to the same cells in solution W: less negative, difference in solution Y compared to solution W: less negative
📋 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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