A-LevelBiologyTransport in plantsFeb/Mar 2023Paper 1 Q281 Mark
Cellulose, lignin and suberin are components of various plant cell walls. Descriptions of these cell wall components are listed. 1 a component of the Casparian strip 2 redirects water into the symplast pathway 3 a hydrophobic component of cell walls 4 water interacts with this molecule in the apoplast pathway Which row correctly matches three of the descriptions with cell wall components?
A2; 4; 1
B3; 4; 2
C4; 1; 2
D4; 3; 1
✓ Correct Answer
The correct answer is D: 4; 3; 1
📋 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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