8_outline_bio119_fermentation

8_outline_bio119_fermentation - Metabolism Part I:...

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Metabolism Part I: Fermentations Part II: Respiration
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Learning objectives are to gain an appreciation  of:  Catabolism  and anabolism ATP Generation and energy conservation Fermentation
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Importance of Metabolism Images: (1) www.bact.wisc.edu (2) en.wikipedia.org Industrial Yogurt, cheese Bread, wine, beer Medical/Health Strain identification Digestion Environmental Cycling of elements Pollutant transformation
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Metabolism: the bigger picture What is metabolism? Chemical reactions that occur in living organisms in order to  maintain life. What does “maintain life” mean? Growth and division Maintaining cellular structures Sense/respond to environment Two parts of metabolism:  
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Cell components nutrients + C-source chemicals or light
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Two parts of metabolism Anabolism - s ynthe s is  o f c o m ple x m o le c ule s   fro m  s im ple r o ne s  during  whic h e ne rg y is   a dde d a s  input Catabolism - the  b re a kdo wn o f la rg e r, m o re   c o m ple x m o le c ule s  into  s m a lle r, s im ple r  o ne s , during  whic h e ne rg y is  re le a s e d,  tra ppe d, a nd m a de  a va ila b le  fo r wo rk
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Anabolism and Growth Appropriate nutrients : Carbon source N, S, P sources Trace metals Appropriate environmental conditions : pH Oxygen Temperature. Light
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CO 2 Autotroph Organic Compounds Heterotroph Anabolism (biosynthesis) Carbons Sources
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Catabolism Organotrophs Phototrophs Litotrophs Chemotrophs Organic compounds, i.e., glucose, succinate Inorganic compounds, S, Fe 2+ ,CO 2 , H 2 , CH 4 Light Chemical compounds ATP, pmf Energy Sources:
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Adenosine triphosphate two of the phosphate bonds are  high energy bonds  breaking bond to remove  phosphate releases energy Figure 5.6 ATP and Energy
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The Role of ATP in Metabolism Reactions in which the terminal phosphate of ATP is
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8_outline_bio119_fermentation - Metabolism Part I:...

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