non specific response

    Cards (4)

    • describe how a phagocyte might destroy a bacteria
      • phagocyte attracted to bacteria by chemicals
      • engulf bacteria
      • bacteria in vacuole / vesicle
      • lysosome fuses and empties enzymes into vacuole
      • bacteria hydrolysed by lysozymes
    • describe how phagocytes destroy bacteria
      phagocytes attracted to dying cells / chemicals released by cells
      phagocyte engulfs the bacteria
      bacteria in vacuole - lysosome fuses with / empties enzymes into vacuole
      lysosome fuses with bacteria and releases lysozymes to break down bacteria
    • What are the similarities and differences between T-lymphocyte and B lymphocytes?
      T lymphocytes target body cells and include cell mediated immunity found in the thymus gland
      B-lymphocyte target humoural immunity another child in the bone marrow
      b cells produce antibodies
      both have receptors
    • Describe how T lymphocytes respond to the presence of a pathogen
      Divide by clonal selection
      become memory cells
      stimulate the cells
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