Immunity

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Across
  1. 2. Cells that are made to remember a pathogen so that if you get it again, you can quickly make antibodies to fight it.
  2. 3. A white blood cell that engulfs and digests pathogens.
  3. 5. A pathogen that replicates by dividing in two (binary fission).
  4. 8. Usually an injection of dead or weakened pathogen to provide immunity.
  5. 9. A disease causing microorganism
  6. 10. Released by lymphocytes to fight off pathogens.
  7. 11. Released by white blood cells to fight toxins.
Down
  1. 1. A white blood cell that makes and releases antibodies
  2. 4. A pathogen that replicates and causes damage by entering the host cell and taking over the DNA replication mechanisms.
  3. 6. The surface receptor that is a specific shape depending on what the pathogen or cell is. Antibodies fit in these like a jigsaw.
  4. 7. A medicine that kills bacteria, not viruses.