A-LevelBiologyCell structureFeb/Mar 2023Paper 1 Q11 Mark
The photomicrograph shows cells from a human blood smear. [Figure 1.1] Which calculation shows a correct method to calculate the actual diameter of the neutrophil shown in the photomicrograph in micrometres (μm)?
Alength of line PQ in mm × 1000
magnification of photomicrograph
Blength of line PQ in mm × 10000
magnification of photomicrograph
Cmagnification of photomicrograph
length of line PQ in mm × 1000
Dmagnification of photomicrograph
length of line PQ in mm × 10000
✓ Correct Answer
The correct answer is A. This question tests the candidate's understanding of cell structure within the Biologysyllabus. The examiner's mark scheme requires...
📋 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...
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