Biology 9700 · AS & A Level · The immune system

The immune system — practice question

A student used a diagram to illustrate four types of cells involved in the primary immune response. cell type 1: release chemicals that cause phagocytes to engulf antigens cell type 2: destroy cells infected with viruses which would be released into the body cell type 3: make the antibodies needed to bind to the antigen cell type 4: identify the foreign antigen, move towards it and surround it Which row is correct?

  • Acell 1 B-lymphocyte; cell 2 macrophage; cell 3 T-killer cell; cell 4 T-helper cell
  • Bcell 1 macrophage; cell 2 B-lymphocyte; cell 3 T-helper cell; cell 4 T-killer cell
  • Ccell 1 T-helper cell; cell 2 T-killer cell; cell 3 B-lymphocyte; cell 4 macrophage
  • Dcell 1 T-killer cell; cell 2 T-helper cell; cell 3 B-lymphocyte; cell 4 macrophage

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