A-LevelBiologyTransport in plantsOct/Nov 2012Paper 1 Q241 Mark
What is correct about the uptake and transport of water in plants? 1 water transported by the symplast pathway enters root hair cells down a water potential gradient 2 water is transported in xylem by the symplast and apoplast pathways to reach the leaves 3 water transported by the apoplast pathway through plasmodesmata must pass through cell surface membranes of endodermal cells
A1 only
B3 only
C1 and 3 only
D2 and 3 only
✓ Correct Answer
The correct answer is A: 1 only
📋 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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