A-LevelBiologyCell structureOct/Nov 2017Paper 1 Q21 Mark
One of the smallest viruses is the polio virus, which has a diameter of approximately 30 nm. In 2003, the Mimivirus was discovered which has a diameter of approximately 680 nm. In 2013, the Pandoravirus was discovered which has a diameter of approximately 1000 nm. Which row correctly matches a cell structure with a virus that has a similar approximate size? [Figure 2.1 - table comparing cell structures with virus sizes]
Apolio virus: lysosome, Mimivirus: nucleolus, Pandoravirus: nucleus
Bpolio virus: nucleolus, Mimivirus: lysosome, Pandoravirus: mitochondrion
Cpolio virus: nucleolus, Mimivirus: mitochondrion, Pandoravirus: lysosome
Dpolio virus: ribosome, Mimivirus: lysosome, Pandoravirus: mitochondrion
✓ 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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