Biology 9700 · AS & A Level · The immune system

The immune system — practice question

In a primary immune response, what is the correct order in which the events occur?

  • 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

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