Prokaryote Classification
- 2. Domains Bacteria and Archaea Classified by Shape Cocci Bacilli Spirilla
- 3. Domains Bacteria and Archaea Classified by Shape Vibrio Spirochete
- 4. Domains Bacteria and Archaea Classified by Configuration Pairs Chains Clusters
- 6. Domains Bacteria and Archaea Gram Stain Developed by Hans Christian Gram in 1884 Still used in laboratories as a “first step” in diagnostics
- 7. Domains Bacteria and Archaea Gram negative Pink Tend to be more pathogenic (disease causing) Have a thinner cell wall Gram positive Purple Have a thicker cell wall
- 8. Reproduction of Prokaryotes Binary fission The DNA replicates and attaches to cell membrane. The cell grows. The DNA copies separate, cell grows larger. The cell splits into two daughter cells.
- 10. Reproduction of Prokaryotes Endospores A thick, protective membrane formed when conditions are bad. Can survive boiling, freezing, drought, etc Will grow when conditions are favorable.
- 11. Prokaryotes in the Ecosystem Nitrogen Fixation Recycling Nutrients Cleaning up Pollution Production of Medicines Production of Food Products Digestion of Food for Animals Pathogenic Bacteria
- 12. Nitrogen Fixation All eukaryotes need nitrogen for basic cellular function. Nitrogen is a major component of proteins and DNA. Bacteria take nitrogen out of the air and convert it to a form plants can use.
- 14. Recycling Nutrients Decay is caused by bacteria and fungi. Organic matter is recycled into original elements by bacteria. Composted material important garden component
- 15. Cleaning up Pollution BIOREMEDIATION uses living things to change polluting chemicals into less harmful chemicals. Mine tailings Oil spills Agricultural Waste Municipal Waste
- 16. Production of Medicines Genetically modified bacteria produce: Antibiotics Insulin Anti-cancer drugs
- 17. Dangerous Bacteria PATHOGENIC bacteria cause diseases. These bacteria attack: Animals Plants Protists Fungi Other bacteria!