Microbiology AN INTRODUCTION EIGHTH EDITION TORTORA FUNKE CASE Chapter 5, part C Microbial Metabolism.

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Microbiology AN INTRODUCTION EIGHTH EDITION TORTORA FUNKE CASE Chapter 5, part C Microbial Metabolism

Feeding methods

Chemotrophs Use energy from chemicals. –Chemoheterotroph Energy is used in anabolism. Glucose Pyruvic acid NAD + NADH ETC ADP + PATP

Chemotrophs Use energy from chemicals. –Chemoautotroph, Thiobacillus ferroxidans Energy used in the Calvin-Benson cycle to fix CO 2. 2Fe 2+ 2Fe 3+ NAD + NADH ETC ADP + PATP 2 H +

Phototrophs Use light energy. Photoautotrophs use light energy in the Calvin- Benson cycle to fix CO 2. Photoheterotrophs use light energy and organic compounds. Chlorophyll Chlorophyll oxidized ETC ADP + PATP

Metabolic Diversity Among Organisms Nutritional typeEnergy sourceCarbon sourceExample PhotoautotrophLightCO 2 Oxygenic: Cyanobacteria plants. Anoxygenic: Green, purple bacteria. PhotoheterotrophLightOrganic compoundsGreen, purple nonsulfur bacteria. ChemoautotrophChemicalCO 2 Iron-oxidizing bacteria. ChemoheterotrophChemicalOrganic compoundsFermentative bacteria. Animals, protozoa, fungi, bacteria.

Polysaccharide Biosynthesis Metabolic Pathways of Energy Use Figure 5.28

Lipid Biosynthesis Metabolic Pathways of Energy Use Figure 5.29

Amino Acid and Protein Biosynthesis Metabolic Pathways of Energy Use Figure 5.30a

Amino Acid and Protein Biosynthesis Metabolic Pathways of Energy Use Figure 5.30b

Purine and Pyrimidine Biosynthesi s Metabolic Pathways of Energy Use Figure 5.31

Are metabolic pathways that have both catabolic and anabolic functions. Amphibolic pathways Figure

Amphibolic pathways Figure

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