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Classification of Microorganisms

Classification of Microorganisms. Putting Bugs in Boxes. Taxonomy. Taxonomy The science of classifying organisms Provides universal names for organisms Provides a reference for identifying organisms. Taxonomy. Systematics or phylogeny The study of the evolutionary history of organisms

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Classification of Microorganisms

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  1. Classification of Microorganisms Putting Bugs in Boxes

  2. Taxonomy • Taxonomy • The science of classifying organisms • Provides universal names for organisms • Provides a reference for identifying organisms

  3. Taxonomy • Systematics or phylogeny • The study of the evolutionary history of organisms • All Species Inventory (2001-2025) • To identify all species of life on Earth

  4. The Three-Domain System Table 10.1

  5. The Three-Domain System Figure 10.1

  6. Endosymbiont Theory Figure 10.2 Figure 10.3

  7. Scientific Names

  8. Taxonomic Hierarchy Figure 10.5

  9. Species Definition • Eukaryotic species: • A group of closely related organisms that breed among themselves • Prokaryotic species: • A population of cells with similar characteristics • Clone: Population of cells derived from a single cell • Strain: Genetically different cells within a clone • Viral species: • Population of viruses with similar characteristics that occupies a particular ecological niche

  10. References

  11. Identification Methods • Morphological characteristics: Useful for identifying eukaryotes • Differential staining: Gram staining, acid-fast staining • Biochemical tests: Determines presence of bacterial enzymes Figure 10.8

  12. Microbiology Lab Order Figure 10.7

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