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A-LevelBiologyTransport in plantsFeb/Mar 2019Paper 1 Q251 Mark

The diagrams show transverse sections of parts of a plant with some transport tissues labelled from 1 to 6. [Figure shows transverse sections of a leaf, stem, and root with labelled tissues 1-6] Which row shows tissues that mainly transport water and tissues that mainly transport sucrose?

Amainly transport water: 1 and 3, mainly transport sucrose: 4 and 6
Bmainly transport water: 1 and 6, mainly transport sucrose: 3 and 5
Cmainly transport water: 2 and 3, mainly transport sucrose: 4 and 5
Dmainly transport water: 3 and 5, mainly transport sucrose: 2 and 6

✓ Correct Answer

The correct answer is B: mainly transport water: 1 and 6, mainly transport sucrose: 3 and 5

📋 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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About This A-Level Biology Question

Topic

This multiple-choice question tests Transport in plants in A-Level Biology (syllabus code 9700). It is worth 1 mark.

Source

This question appeared in the Cambridge A-Level Biology Feb/Mar 2019 examination, Paper 1 Variant 2.

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