A-LevelBiologyCell structureOct/Nov 2015Paper 1 Q21 Mark
Different units are used when measuring biological specimens. Which measurement in mm has not been correctly converted into both µm and nm?
A1.0 1.0 x 10³ 1.0 x 10⁶
B2.5 2.5 x 10³ 2.5 x 10⁶
C5.0 5.0 × 10⁴ 5.0 x 10⁷
D25.0 2.5 × 10⁴ 2.5 x 10⁷
✓ Correct Answer
The correct answer is C. 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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