Chapter 17 / 5 short lessons
Immune recognition and memory
Connect immune-cell roles, antibody structure and genetic diversification.
H2 Biology / 9477 / 2027 syllabus
What do you think?
A B cell switches from IgM to IgG. Must its antigen target change?
Lessons
0 of 5 marked as readInnate, adaptive, active and passive
Compare innate/adaptive and natural/artificial active/passive immunity.
About 7 minCoordinate an adaptive response
Explain antigen-presenting cells, helper T cells and cytotoxic T cells.
About 7 minClonal selection and immune memory
Explain B/T-cell selection, expansion, plasma cells and primary/secondary responses.
About 7 minIgG: bind specifically, recruit help
Relate IgG molecular structure to specificity and effector functions.
About 7 minRecombination, hypermutation and class switching
Explain how antibody diversity and specialised functions arise.
About 8 minWhat you will be able to do
- Distinguish immune systems and acquisition routes.
- Explain cell cooperation and memory.
- Separate antibody specificity, affinity and class.