A-LevelBiologyCell structureOct/Nov 2014Paper 1 Q31 Mark
The statements are all descriptions of cell structures. 1 surrounded by a single membrane and enclosing a large fluid-filled space 2 surrounded by a single membrane and enclosing inactivated enzymes 3 formed by two membranes enclosing a matrix, the inner membrane is folded 4 formed by a membrane that has flattened sacs and tubular structures inter-connected throughout the cell 5 formed of nucleic acid and protein attached to membranes or free in the cytoplasm Which row shows the typical cell in which these cell structures are found?
Aplant cell: 1, 2, 3 and 4, animal cell: 1, 2, 3 and 5
Bplant cell: 1, 3, 4 and 5, animal cell: 2, 3, 4 and 5
Cplant cell: 2, 4 and 5, animal cell: 1, 4 and 5
Dplant cell: 3, 4 and 5 only, animal cell: 2, 3 and 5 only
✓ Correct Answer
The correct answer is B: plant cell: 1, 3, 4 and 5, animal cell: 2, 3, 4 and 5
📋 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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