1. Introduction to Microbiology
1.2 Microbes and the World

2. 4.6 b.y.a. Formation of the Earth 3.5 b.y.a. First forms of Life
Evolution of life
4.6 b.y.a. Formation of the Earth
3.5 b.y.a. First forms of Life
Archaea & Bacteria
Endosymbiotic Theory-Margulis
Fusion of Prokaryotes to make Eukaryotes

3. Classification (taxonomy)
Morphology
Evolutionary Relationships
DNA analysis, cladogram
Domains:
Eubacteria
Archaea
Eukaryota

4. Biodiversity
Able to live in almost any environment
Reproduce and Evolve rapidly

5. Types of Microorganisms
Six Major Types of Microbes:
Bacteria
Archaea
Fungi
Protozoa
Algae
Viruses

6. Bacteria Characteristics: Unicellular/Colonies Prokaryotic
Peptidoglycan cell wall
Binary Fission
Flagella

7. Bacteria Four Major Shapes: Bacillus (rod) Coccus (spherical)
Spirilla (spiral)
Vibrio (curved)

8. Bacteria Cell Wall Structure Response to Oxygen Gram-positive
Gram-negative
Response to Oxygen
Aerobic
Anaerobic
Facultative Anaerobic

9. Bacteria
Energy Use
Heterotrophs
Autotrophs

10. Archaea Prokaryotic Lack peptidoglycans Extreme Environments
Methanogens
Halophiles
Thermophiles
Psychrophiles

11. Fungi
Molds, Yeasts
Eukaryotic
Cell Wall-chitin
Hyphae
Spores

12. Fungi
Food Production
Heterotrophic
Decomposers
Symbionts
Parasites

13. Protozoa (Plankton) Largest Group Mostly Aquatic Eukaryotic Autotrophs
Phytoplankton
Heterotrophic
Zooplankton

14. Protozoa (Plankton) Cell Wall-Cellulose Movement Flagellates Ciliates
Amoeboids

15. Algae (cyanobacteria)
Eukaryotic
Blue-Green Algae
Photosynthesis

16. Cannot reproduce or metabolize without host
Viruses
Noncellular
Protein Coat
DNA or RNA
Cannot reproduce or metabolize without host
Many pathogenic

17. Multicellular Animal parasites
Part of life cycle is microscopic
Helminths
Flatworms
Roundworms