Figure 1: Borrelia burgdorferi

Spontaneous Generation Controversy

Fig. 1-8 A Demonstration of Koch’s Postulates Koch’s postulates

Prokaryotes/Eukaryotes 1940s electron microscope – observation that bacteria have no nucleus Fig. 2-2 Prokaryotic and Eukaryotic Cells

The 5 Kingdom System of Classification

The 3 Domain System

Binomial name Genus followed by species modifier Example: Escherichia coli or E. coli CAPITALIZED Italicized

Size Fig. 2-5 Six Comparisons Among Various Living Things and Molecules

Bright Field Images of Clostridium botulinum

Darkfield of cyanobacteria

Live/Dead stain, fluorescence

Transmission and Scanning Electron Microscopy Ebola virus

SEM of Listeria monocytogenes, a food-borne pathogen

Exercise: How do you classify?

Non-living

Bacterial Morphology

largest – 50 μm in diameter smallest – 0.3 μm in diameter Figure 3.3

Thiomargarita namibiensis