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A-LevelBiologyTransport in plantsOct/Nov 2012Paper 1 Q271 Mark

The diagrams show transverse sections of parts of a plant. [Figure 27.1] In the transverse sections, what do 1, 2, 3, 4, 5 and 6 represent?

Aleaf phloem: 1, leaf xylem: 2, stem phloem: 3, stem xylem: 4, root phloem: 5, root xylem: 6
Bleaf phloem: 1, leaf xylem: 2, stem phloem: 4, stem xylem: 3, root phloem: 6, root xylem: 5
Cleaf phloem: 2, leaf xylem: 1, stem phloem: 3, stem xylem: 4, root phloem: 5, root xylem: 6
Dleaf phloem: 2, leaf xylem: 1, stem phloem: 4, stem xylem: 3, root phloem: 6, root xylem: 5

✓ Correct Answer

The correct answer is C: leaf phloem: 2, leaf xylem: 1, stem phloem: 3, stem xylem: 4, root phloem: 5, root xylem: 6

📋 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 Oct/Nov 2012 examination, Paper 1 Variant 2.

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