MODEL
First response, lasting memory
Compare primary and secondary responses.
Model
Compare lag, peak and persistence. Antigen-specific memory can support a faster, stronger later response.
0.0 response units
Invented teaching curves, not measured titres or a vaccination schedule. Responses vary with antigen, person and context.
Explain what you observed
How can you isolate the effect of one factor?
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Connect this activity with your lesson notes and chapter practice.
Read a related learning guide →Practise Immunity →Open the student notes folder ↗Concepts and sources
Chapter extension: selected concepts, not complete syllabus coverage.
Read the supporting source ↗PMDC curriculum ↗Questions and explanations are original teaching material; these are not official exam questions.