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Domain Bacteria: Eubacteria Domain Archea: Archaebacteria.

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Presentation on theme: "Domain Bacteria: Eubacteria Domain Archea: Archaebacteria."— Presentation transcript:


2 Domain Bacteria: Eubacteria Domain Archea: Archaebacteria

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

4 6 Major Kingdoms: 1. Archaebacteria 2. Eubacteria Domain Eukaryote 1. Protista 2. Fungi 3. Planta 4. Animalia 1. prokaryotes 2. prokaryotes 3. Unicell, and multicelled 4. Mostly Multicellular, heterotrophs 5. Muticelled, autotrophs 6. Muticelled heterotrophs

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

6 Penicillin Mold (Fungus)

7 Penicillin Mold Kills Bacteria First Antibiotic Alexander Fleming discovered in 1928 Penicillin inhibits the growth of bacteria

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

9 Bacteria Structure:

10 Classified by Shape, Size, Staining, Environment, & Color

11 Streptococcus Bacteria

12 Below: Cynobacteria and Salmonella Autotroph BacteriaFlagellated Bacteria

13 Spiral or Spirilli Bacteria Example: Syphilis-STD

14 Bacilli Bacteria Tuberculosis

15 Tuberculosis: Bacterial Infection

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

17 Aerobic Bacteria require oxygen & can make cavities!

18 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

19 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

20 Bacteria can be Helpful and Harmful Helpful 1. Nitrogen fixation 2. Decomposition 3. Used to make Food Harmful 1. Bacteria Cause Diseases

21 Making Cheese with Bacteria

22 ?Life on Mars?

23 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 2000. © 1993-1999 Microsoft Corporation. All rights reserved.

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

25 Genetic Engineering of Insulin


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