Fighting Disease

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  • Fighting Disease - WBC
    • Consuming Microbes
      • ENGULF foreign cells and DIGEST them.
    • Producing Antibodies
      • Every invading cell has ANTIGENS on the surface.
        • When WBC come across a foreign antigen, they produce PROTEINS CALLED ANTIBODIES, to lock on to and kill the invading cells.
          • The antibodies produced are specific to that type of antigen.
          • Antibodies are produced rapidly, carried around the body to kill all similar bacteria or viruses.
            • If the person is infected with same pathogen again, WBC rapidly produce antibodies to kill it, so they are naturally immune.
    • Producing Antitoxins
      • Counter toxins produced by invading bacteria.


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