A-LevelBiologyImmunityMay/June 2020Paper 1 Q281 Mark

The photomicrograph shows three white blood cells labelled X, Y and Z. [Figure 28.1] Which row correctly identifies these cells? [Figure 28.2]

Q: What topic does this question test?

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

Acell X: lymphocyte, cell Y: monocyte, cell Z: neutrophil

Bcell X: lymphocyte, cell Y: neutrophil, cell Z: monocyte

Ccell X: monocyte, cell Y: neutrophil, cell Z: lymphocyte

Dcell X: neutrophil, cell Y: monocyte, cell Z: lymphocyte

✓ Correct Answer

The correct answer is A: cell X: lymphocyte, cell Y: monocyte, cell Z: neutrophil

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

Source

This question appeared in the Cambridge A-Level Biology May/June 2020 examination, Paper 1 Variant 2.

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