A-LevelBiologyCell structureMay/June 2016Paper 1 Q11 Mark
A student was presented with a photomicrograph of a cell organelle. The magnification of the photomicrograph is known. Which calculation of the actual length of the organelle in µm is correct?
Aactual size in cm × 100 divided by the magnification
Bactual size in mm × 100 divided by the magnification
Cimage size in cm × 1000 divided by the magnification
Dimage size in mm × 1000 divided by the magnification
✓ Correct Answer
The correct answer is D. 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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