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IB Biology HL 3.2.9 Clonal selection and antibody response Question Bank

Practise IB Biology HL 3.2.9 by analysing clonal selection and the production of antibody-secreting cells.

Syllabus
First assessment 2025
Course
Biology HL
Level
HL

Exam points

  • Explain how clonal selection produces plasma and memory B cells.
  • Analyse primary immune responses and antibody production after pathogen exposure.

C3.2.9—Clones of plasma cells question 1

[Maximum number: 1]

The figure shows a transmission electron micrograph of rotavirus particles. Each rotavirus is about 70 nanometres in diameter.

Figure for Question C3.2.9—Clones of plasma cells question 1 — IB Biology HL

State the role of plasma cells in the immune system.

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