Viruses and Bacteria

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Across
  1. 1. substance introduced into the body to stimulate the production of chemicals that destroy specific viruses or bacteria
  2. 3. organisms that break down large chemicals in dead organisms into small chemicals.
  3. 5. whip-like structure to help a cell move
  4. 6. virus that infects bacteria
  5. 8. tiny, non-living particle that enters and then reproduces inside a living cell.
  6. 10. organism that lives on or in a host and causes it harm.
  7. 11. transfer of genetic material into another bacterium through a thin, threadlike bridge that joins the two cells.
  8. 12. when bacteria are able to survive in the presence of an antibiotic.
  9. 15. organism that provides a source of energy for a virus.
  10. 17. heating food to a temperature that will kill bacteria but not change the taste of the food.
  11. 18. breaking down food to release its energry
  12. 19. region inside the cell membrane
Down
  1. 2. reproduction that requires only one parent
  2. 4. the most numerous organisms on earth; unicellular organism
  3. 6. one cell divides to form two identical cells
  4. 7. where proteins are produced
  5. 9. illnesses that pass from one organism to another.
  6. 12. chemical that can kill bacteria
  7. 13. poison
  8. 14. reproduction that requires two parents who combine genetic material to produce a new organism
  9. 16. small, rounded, thick-walled, resting cell that forms inside a bacterial cell