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Edexcel A-Level Biology A2 6.10 B Cells and T Cells Questions

Trace antigen presentation, T-helper and T-killer activation, B-cell clonal expansion, antibody production, infected-cell destruction and immune memory using marked questions.

Syllabus
First assessment 2019
Course
Biology YBI11
Level
A2

Exam points

  • explain how T helper cells activate B cells, clonal expansion and antibody-secreting plasma cells
  • explain antigen presentation, T killer-cell activation and destruction of infected or cancer cells
  • compare primary and secondary responses and apply memory cells to vaccination or immune treatment

Edexcel A-Level Biology A2 6.10 B Cells and T Cells Questions question 1

[Maximum number: 4]

There are four types of immunity.

Natural active immunity can develop when a person is infected with a virus.

Explain why both T helper cells and T killer cells are needed in the immune response to a virus.

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