T Cells – UPSC Prelims

T Cells:
  • T cells are a part of the immune system that focuses on specific foreign particles.
  • T cells circulate until they encounter their specific antigen and play a critical part in immunity to foreign substances.
  • T cells can act as “killer cells”, attacking cells which have been infected with a virus or another kind of pathogen.
  • They can also act as “helper cells” by supporting B cells to produce antibodies.
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