1. Bacteria Information
Also known as Monerans

2. Definition / Characteristics
Unicellular (one-celled)
Prokaryote (no nucleus)
Some are good and some are bad
Some are autotrophs (make their own food) and some are heterotrophs (eat food)

3. All bacteria fit in one of these kingdoms:
2 Kingdoms of bacteria
All bacteria fit in one of these kingdoms:
Archaebacteria
Eubacteria

4. Helpful Break down organisms
They change nitrogen to a form that plants can use
They help make food like yogurt, cheese, and sour cream
Make medicines

5. Helpful Makes cleaners and glue
Help clean up oil spills (process called bioremediation)
Help break down food in our digestive system
Help to make vitamins

6. Harmful Spoils food (like milk)
Give us diseases like strep throat and lymes disease
Produce toxins (poisons)

7. What can we do to reduce the amount of bacteria in our lives?

8. sterilization
Using high temperatures to kill them Ex. wash your hands with hot water

9. Freezing and refrigeration
Bacteria cannot survive in very low temperatures for a long period of time

10. pasteurization
Heated and then cooled and kept at cool temperatures Examples : milk and fruit juice are pasteurized

11. dehydration
Removal of water (most bacteria need some moisture to survive)

12. Vacuum packed
Air is taken out so bacteria can’t grow

13. disinfectants
Special chemicals that kill bacteria Examples: Bleach Lysol Soap

14. antiseptic
A disinfectant that can be used on people to kill bacteria so your wound does not get infected Ex. Neosporin Hydrogen peroxide Rubbing alcohol

15. antibiotic
A doctor prescribes one – type of medicine that kills the bacteria making you sick Ex. penicillin

16. vaccines
Given to prevent getting a disease Weak or dead bacteria put into your body so your body can get immune to it