A-LevelBiologyCell structureOct/Nov 2016Paper 1 Q21 Mark

This electron micrograph of a section of a leaf has a magnification of × 210. What is the actual length along the line X-Y? [Figure 2.1]

Q: What is the correct answer to this A-Level Biology question?

The correct answer is C: 243.0 µm.

Q: What topic does this question test?

This question tests Cell structure in A-Level Biology (syllabus code 9700). It is worth 1 mark.

A2.43 µm

B24.3 µm

C243.0 µm

D2430 µm

✓ Correct Answer

The correct answer is C: 243.0 µm

📋 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 Cell structure in A-Level Biology (syllabus code 9700). It is worth 1 mark.

Source

This question appeared in the Cambridge A-Level Biology Oct/Nov 2016 examination, Paper 1 Variant 2.

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