A-LevelBiologyImmunityMay/June 2024Paper 1 Q381 Mark
What is the correct sequence of events in a primary immune response?
AT-lymphocyte activation → B-lymphocyte selection → plasma cell release
Bantigen presentation by macrophages → cytokines released by T-helper cells → B-lymphocyte differentiation
Cantigen presentation by neutrophils → T-memory cell activation → B-lymphocyte selection
DT-memory cell activation → B-memory cell activation → antibody production
✓ 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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