Bacteria and Viruses

Name: ______________________   Date: ____________

Use the clues to fill in the crossword.

Across

  1. 3. Immunogen consisting of a suspension of weakened or dead pathogenic cells injected in order (7)
  2. 7. The act of making ___ (12)
  3. 8. Red liquid pumped around the body by the heart (5)
  4. 9. Any of a large variety of proteins normally present in the body or produced in response to (8)
  5. 10. Instrumentality that combines interrelated interacting artifacts designed to work as a coherent (6)
  6. 12. Tiny single-celled living things, some of which cause illness (8)
  7. 13. Tiniest unit of living things (4)

Down

  1. 1. An acute and highly contagious viral disease marked by distinct red spots followed by a rash (7)
  2. 2. An acute viral disease marked by inflammation of nerve cells of the brain stem and spinal cord (5)
  3. 4. A chemical substance derivable from a mold or bacterium that can kill microorganisms and cure (10)
  4. 5. Ultramicroscopic infectious agent that replicates itself only within cells of living hosts (5)
  5. 6. A person who is ___ to a particular infection (6)
  6. 11. The color of snow (5)