Microbial Growth & Metabolism

Figure 9.CO: A simplified food chain

Courtesy of the Soil Biology Primer/USDA

Figure 9.1a: Potential meteorite microorganism

Courtesy of David McKay/NASA

Figure 9.1b: Meteorite mineral ledges

Courtesy of Dr. John Bradley, Institute for Geophysics and Planetary Physics, Livermore, CA

Figure 9.2: The growth curve for a bacterial population

Figure 9.3a: Moldy bread

© Jones and Bartlett Publishers. Photographed by Kimberly Potvin

Figure 9.3b: Human large intestines harbor E. coli

© Photodisc

Figure 9.3c: Thermophilic algae

Courtesy of J Schmidt/Yellowstone National Park/NPS

Figure 9.4: A species of Acid-loving Streptococcus

Reprinted with permission from the American Society for Microbiology (Tao, L., Tanzer, J.M and MacAlister, T.J.; J. Bacteroil, 1987 June; 169(6): 2543-2547.)

Figure 9.5: The Great Salt Lake in Utah provides the high-salt environment favored by halophilic bacteria.

© Brian Chase/ShutterStock, Inc.

Figure 9.6: The mechanism of enzyme action

Figure 9.7a,b: Adenosine Triphosphate

Figure 9.8 1-4: Glycolysis: Steps 1-4

Figure 9.8 5-9: Glycolysis: Steps 5-9

Figure 9.9: The relationship of fermentation to glycolysis

Figure 9.10: The Krebs Cycle

Figure 9.11: Electron transport and chemiosmosis in bacteria

Figure 9.12a,b: Photosynthesis in microbes