A-LevelBiologyImmunityOct/Nov 2010Paper 1 Q381 Mark
The diagram shows the response to a pathogen by the immune system. [Figure 38.1 showing an immune response pathway with P, Q, R, S] Which row correctly identifies P, Q, R and S? P Q R S
Aantibody T-lymphocyte antigen plasma cell
Bantigen B-lymphocyte antibody memory cell
Cantigen T-lymphocyte antitoxin B-lymphocyte
Dbacteria B-lymphocyte antibody T-lymphocyte
✓ Correct Answer
The correct answer is B. This question tests the candidate's understanding of immunity 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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