Multiplication Video youtube/watch?v=5Xi2Nc1UicQ

1. Multiplication Videohttp://www.youtube.com/watch?v=5Xi2Nc1UicQ

2. Tetanus Lyme Disease Plague 9.2 Bacteria MRSA Anthrax Staph

3. Bacteria are ______________; living, single-celled organisms! • They are carried from place to place in _____, _________, or on the _____________ of objects. • Some can move by flicking whip-like _____________. prokaryotes air water surfaces flagella Typical Animal Cell Typical Bacterium Eukaryote Prokaryote

4. The genetic material of prokaryotes is not contained in a______________. • Prokaryotes have no cell organelles other than _________________. nucleus ribosomes Eukaryote Prokaryote

5. Autotrophs two • Using the sun’s energy • (photosynthesis) • Using chemical energy • (chemosynthesis) 3. All living things must have food (energy source) to survive. a. __________ - make their own food one of _____ ways:

6. Heterotrophs Decomposers b. _______________ - consume other organisms. Ex) ______________ cellular respiration *** Remember, all living cells do _____________________, which requires ___________. Oxygen

7. B. Bacteria Shapes 1. ________________________ Rod-like (Bacillus)

8. 2. _________________________ Spherical (Coccus)

9. 3. ________________________ Spiral (Spirillus)

10. C. Reproduction - Bacteria can reproduce two ways: • Asexual reproduction is accomplished through __________ __________. • a. One parent divides to produce two _____________ bacteria. • This ________ genetic diversity. binary fission identical limits

11. 2. Sexual reproduction is accomplished through _________________. a. Two parents produce new organisms that _____________ their genes from each parent. This ___________ genetic diversity. conjugation inherit increases

12. D. Bacteria and Us – Reasons to be glad bacteria are out there! 1. Oxygen production oxygen a. A great deal of Earth’s ___________ is produced by bacteria, and other photosynthesizing autotrophs.

13. 2. Natural recyclers a. _________________ are heterotrophic bacteria that break down large chemicals in dead organisms into small chemicals. b. These chemicals are returned to the __________ for other organisms to use. Decomposers soil

14. 3. Food Production – pasteurization of dairy products. a. _____________________ butter b. ___________________ cheese c. ____________________ yogurt d. ____________________ kefir

15. 4. Your body a. Good bacteria on your body __________________ ___________ with bad bacteria. compete for space

16. b. Good bacteria in your _________________ help digest food. intestines http://player.discoveryeducation.com/index.cfm?guidAssetId=df103fa0-40ec-4d80-b94a-9c039db80c28

17. geneticengineering c. Recall that bacteria are frequently used in __________________. Ex) production of human insulin

18. Skin as a Barrier http://player.discoveryeducation.com/index.cfm?guidAssetId=5f74f4b1-347a-49e3-a516-b4f24e6e7e51

19. 5. Bacteria and Disease a. Bacteria that cause disease make up less than ____________ of known bacteria species. Fun Fact!!! onepercent The ____________ toxin produced by bacteria in poorly-preserved canned or jarred food, is used in small doses in __________ injections as a way to temporarily paralyze muscles. botulism botox

20. Dino Disease? http://player.discoveryeducation.com/index.cfm?guidAssetId=abbebdc3-7395-4abc-9be6-43f3e6fca5b9

21. alive killed antibiotics Ex) Penicillin b. Because they are _________, bacteria can be ____________, using _______________. c. Antibiotics are ________ that are typically produced by _________, which have been competing with bacteria on Earth for ______________ of years in the world’s oldest “Arms Race” toxins fungi billions

22. Ex) MRSA (Methicillin-resistant Staphylococcus-aureus) good sideeffects evolution d. There are drawbacks to using antibiotics: - antibiotics can also kill the ______ bacteria in our bodies - antibiotics can cause unwanted ____________. - over-use of antibiotics can lead to the _____________ of antibiotic-____________ bacteria which can withstand our strongest medicines. resistant Incorrect antibiotic use kills all but the “strongest bacteria”

23. Antibiotic Resistance http://player.discoveryeducation.com/index.cfm?guidAssetId=e852a83c-8149-4d4e-8181-439511cbc0cd

24. Quiz (who was listening? ) • Are bacteria alive? • Do bacteria cells have a nucleus? • What is it called when bacteria reproduce asexually? • Are all bacteria harmful? • Name one way that bacterial can be helpful: • Name one antibiotic: • Complete this sentence: • “When antibiotics are used incorrectly, they kill off the weakest bacteria in a sick person, leaving the ____________ ones to survive and reproduce” • http://www.fda.gov/AnimalVeterinary/SafetyHealth/AntimicrobialResistance/ucm134359.htm

25. http://www.fda.gov/downloads/AnimalVeterinary/SafetyHealth/AntimicrobialResistance/UCM134417.wmvhttp://www.fda.gov/downloads/AnimalVeterinary/SafetyHealth/AntimicrobialResistance/UCM134417.wmv