Ch04 - 1/26/2011 1 Nutrition and Growth of Microbes Chapter...

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Unformatted text preview: 1/26/2011 1 Nutrition and Growth of Microbes Chapter 4 Figure 4-0 Bacterial Culture, Growth, and Development 1/26/2011 2 Bacillus subtilis Colony Clearly different Clearly, different parts of the colony reflect different architecture, brought about by phenotypic differences in the cells therein. cells therein. Macronutrients in Culture Media Which are for catabolism? anabolism? both? 1/26/2011 3 1/26/2011 4 Micronutrients in Culture Media Rickettsia growing in Chicken Embryo SEM Chick Fibroblast Cells Gimsa stain, R. prowazekii 1/26/2011 5 Figure 4-2 The carbon cycle. Proteins Amino Acids Heterotrophs Amino Acids 1/26/2011 6 Autotrophs Figure 4-3 Bacterial membrane ATP synthase. 1/26/2011 7 Nitrogen Cycle Symbiotic Nitrogen Fixation 1/26/2011 8 Figure 4-6 Facilitated diffusion. Figure 4-7 Coupled transport. 1/26/2011 9 ABC Transporter Group Translocaton 1/26/2011 10 Fe +++ Transport Iron Acquisition 1/26/2011 11 Growth Factors = Vitamins Growth Factors can be any monomer that the organism lacks a functional biosynthetic pathway for.such as amino acids, nucleotides, etc. Examples of Culture Media 1/26/2011 12 Figure 4-11 Separation and growth of microbes on an agar surface. Aseptic Transfer 1/26/2011 13 Figure 4-12 Dilution streaking technique. Figure 4-13 Bacterial colonies. 1/26/2011 14 Colonies on Streaked Plates Figure 4-14 Tenfold dilutions, plating, and viable counts. 1/26/2011 15 Whats the Difference with These Colonies?...
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Ch04 - 1/26/2011 1 Nutrition and Growth of Microbes Chapter...

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