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bio lab exam 2 review

bio lab exam 2 review - Cellular Metabolism Requires...

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Cellular Metabolism Requires chemical energy which is provided by the oxidation of glucose Glucose is oxidized through a series of enzymatic reactions that produce Carbon dioxide Water ATP C 6 H 12 O 6 6 H 2 O + ATP Oxidation of Glucose Glycosis Krebs Cycle (aka Citric Acid Cycle) Glycosis Anaerobic --occurs in absence of oxygen Takes place in cytoplasm Produces pyruvate o Can be further metabolized by another series of anaerobic reactions called fermentation o Results in alcohol and carbon dioxide Cellular respiration Aerobic --dependent on oxygen Krebs Cycle and electron transport chain Takes place in mitochondria Produces more ATP Redox reactions Chemical oxidation --molecules lose electrons (LEO--lose electrons oxidation) Chemical reduction --molecules gain electrons (GER--gain electrons reduction) Anaerobic respiration
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Fermentation --cells break down glucose to form ethanol, CO 2 , and 2 ATP C 6 H 12 O 6 2C 2 H 5 OH + 2CO 2 + 2ATP (glucose ethanol + carbon dioxide + energy) Bromothymol blue o Forms carbolic acid in the presence of CO 2
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