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BACTERIA
Figure 5.CO: Stromatolites on Lake Thetis in western Australia
© Graham Corney/Alamy Images
Figure 5.COinsert: Cyanobacteria strands
© Dr. Jeremy Burgess/Photo Researchers, Inc.
Figure 5.1: The bacteria on Earth
Figure 5.2: Variations in bacterial structure
Figure 5.3a: Stain Reactions in Microbiology: The simple stain technique
Figure 5.3b: Stain Reactions in Microbiology: The Gram stain technique
Figure 5.4: The effect of penicillin
© CNRI/Photo Researchers, Inc.
Figure 5.5: A hypothetical bacterial cell
Figure 5.6: The bacterial flagellum
Photograph by Gary Gaard. Courtesy of Dr. A. Kelman (Department of
Plant Pathology, University of Wisconsin-Madison)
Figure 5.7: The formation of a bacterial spore.
Figure 5.8: Binary fission in bacteria
Figure 5.9: Use of an enriched medium
Courtesy of Bill Branson/National Cancer Institute
Figure 5.10: The Habitat of Extremophiles: An alkaline spring in
Yellowstone Park shows a mat of cyanobacteria in the foreground.
© Can Balcioglu/ShutterStock, Inc.
Figure 5.11: TEM of the heterotrophic bacterium Escherichia coli with pili
(X40,000)
© Dr. Dennis Kunkel/Visuals Unlimited
Figure 5.12: Chlamydia. Dark inclusion bodies typical of a Chlamydia
infection
Courtesy of Dr. E. Arum/Dr. N. Jacobs/CDC