1. Domain Bacteria: Eubacteria Domain Archea: Archaebacteria

2. Archaebacteria and Eubacteria Previously called Monera
Prokaryotes
No Nucleus,
No membrane bound organelles

3. 6 Major Kingdoms: Protista Fungi Planta Animalia prokaryotes
Unicell, and multicelled
Mostly Multicellular, heterotrophs
Muticelled, autotrophs
Muticelled heterotrophs
Archaebacteria
Eubacteria
Domain Eukaryote
Protista
Fungi
Planta
Animalia

4. Bacteria Kingdom Characteristics:
Archaebacteria
Extremists
Saline (salt) habitats
Hot sulfur springs
Eubacteria
Heterotrophs
Parasites
Saprobes
Nitrogen fixation
Photosynthetic autotrophs

5. Penicillin Mold (Fungus)

6. Penicillin Mold Kills Bacteria
First “Antibiotic”
Alexander Fleming discovered in 1928
Penicillin inhibits the growth of bacteria

7. Macrophage (white blood cell) engulfs a bacterium in the immune system

8. Bacteria Structure:

9. Classified by Shape, Size, Staining, Environment, & Color

10. Streptococcus Bacteria

11. Below: Cynobacteria and Salmonella
Autotroph Bacteria
Flagellated Bacteria

12. Spiral or Spirilli Bacteria Example: Syphilis-STD

13. Bacilli Bacteria Tuberculosis

14. Tuberculosis: Bacterial Infection

15. Bacterial Reproduction:
Genetic
Recombination (Sexual)
Conjugation
Exchange of DNA
Variety
Asexual
Binary fission
No Variety

16. Aerobic Bacteria require oxygen & can make cavities!

17. Helpful in the intestines Harmful in other parts of the body
Anaerobic Bacteria live without oxygen, in our intestines & may be in polluted waters
E. Coli from human feces
Helpful in the intestines
Harmful in other parts of the body

18. Endospores
Thick Walled structures which keep bacteria in a Dormant state
No reproduction during this time
Metabolic activity is shut down
Protects bacteria against hostile environments
“Come back to life” with favorable conditions

19. Bacteria can be Helpful and Harmful
Nitrogen fixation
Decomposition
Used to make Food
Harmful
Bacteria Cause Diseases

20. Making Cheese with Bacteria

21. ?Life on Mars?

22. NASA/Science Source/Photo Researchers, Inc.
This meteorite was probably blasted off of the surface of the planet Mars about 16 million years ago by an impact with an asteroid and travelled through space to the earth, where it landed on Antarctica about 13,000 years ago. Some scientists believe that the rod-shaped structures across the top and center of this image may be tiny fossilized bacteria. Many other scientists believe that the structures were formed by processes other than life.
NASA/Science Source/Photo Researchers, Inc.
"Martian Meteorite ALH84001," Microsoft® Encarta® Encyclopedia © Microsoft Corporation. All rights reserved.

23. Bacteria Cultures: Inoculate = to place
Agar = culture medium (nutrients)
One colony (circle)= billions of bacteria
A colony begins from one bacterium
Incubate at 37oC= body temperature

24. Genetic Engineering of Insulin

25. The End