Bacteria and Virus

2. Poison produced by bacteria.
6. Illness that pass from one organism to another. It can spread through contact with either an infected person, a contaminated object, an infected animal, or an environmental source.
10. Chemical that kills only bacteria.
11. Food is heated to a temperature that is high enough to kill most harmful bacteria without changing the taste of the food.
12. Region inside the cell membrane.
13. Nonliving particle that invades cells.
15. Cell part in which proteins are made.
17. This results when some bacteria are able to survive in the presence of an antibiotic.
19. Long, whiplike structure on bacteria.
20. Are single-celled organisms. They are prokaryotes. Their cells have one of three basic shapes: spherical, rodlike, or spiral.
21. Harmful organism that lives on a host.

1. Two bacteria exchange genetic material.
3. A reproductive process that involves only one parent and produces offspring that are identical to the parent.
4. Stimulates the body to produce chemicals that destroy viruses and bacteria.
5. A reproductive process that involves two parents who combine their genetic material to produce a new organism that differs from both parents.
7. Small, rounded, thick-walled, resting cell.
8. Breaking down food to release energy.
9. Energy source for a parasite.
14. Organisms that break down large chemicals in dead organisms into small chemicals.
16. A process in which one cell divides to form two identical cells.
18. A virus that infects bacteria.