A-LevelBiologyCell membranes and transportMay/June 2013Paper 1 Q61 Mark
An animal cell and a plant cell are placed in distilled water. The animal cell swells and bursts, while the plant cell swells but does not burst. What accounts for this difference?
AAnimal cells have no cell wall.
BAnimal cells have no vacuole.
CPlant cell surface membranes are partially permeable.
DPlant cell walls are freely permeable.
✓ Correct Answer
The correct answer is A: Animal cells have no cell wall.
📋 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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