A-LevelBiologyImmunityMay/June 2022Paper 1 Q381 Mark
Rabies is a viral disease which can be spread to humans by a bite from an infected animal. One method of treatment is to inject the patient with antibodies specific to the rabies virus. Which statements about this treatment are correct? 1 The patient will have natural passive immunity to rabies. 2 The injected antibodies will be broken down by the patient. 3 The patient's memory cells will be able to produce this antibody more rapidly in the future. 4 The immunity provided will only last a short time.
A1 and 3
B1 and 4
C2 and 3
D2 and 4
✓ Correct Answer
The correct answer is D: 2 and 4
📋 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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