A-LevelBiologyCell structureMay/June 2020Paper 1 Q41 Mark
Four students were asked to match the function with the appearance of some cell structures in an animal cell. The functions were listed by a number. 1 organises microtubules to produce the spindle during cell division 2 synthesis of polypeptides 3 packaging of hydrolytic enzymes that will remain in the cell The appearances were listed by a letter. V membranes which surround an enclosed inner cavity W non-membrane bound, spherical structures X a double membrane with many pores Y non-membrane bound, cylindrical structures Z membrane-bound sacs, arranged as a flattened stack Which student correctly matched the numbered function with the appearance of the cell structure? [Figure 4.1]
A1: W, 2: X, 3: Y
B1: W, 2: Z, 3: W
C1: Y, 2: W, 3: Z
D1: Y, 2: Z, 3: Z
✓ Correct Answer
The correct answer is C: 1: Y, 2: W, 3: Z
📋 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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