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Objective: To be able to describe cellular respiration, lactic acid and alcohol fermentation. To be able to describe cellular respiration. Cellular Respiration 6O2 + C6H12O6 6CO2 + 6H2O + energy Releases energy by breaking down glucose and other food molecules when oxygen is present. To be able to describe cellular respiration. Glycolysis Process when glucose is broken in half to produce 2 molecules of pyruvic acid (3 Carbon molecules) To be able to describe cellular respiration. ATP has to invest 2 ATP in the beginning gets 4 back at the end net gain= 2 ATP To be able to describe cellular respiration. NADH During glycolysis 4 high-energy electrons are passed to a carrier called NAD+ this is converted into NADH Glycolysis does not require oxygen!! To be able to describe fermentation. Fermentation- No Oxygen (anaerobic) releases energy from food molecules w/o oxygen Two Types: Alcoholic Fermentation and Lactic Acid Fermentation To be able to describe alcohol fermentation. Alcoholic Fermentationpyruvic acid + NADH alcohol +CO2+ NAD+ Causes bread to rise To be able to describe lactic acid fermentation. Lactic Acid Fermentationpyruvic acid converted to lactic acid and regenerates NAD+ pyruvic acid+ NADH lactic acid + NAD+ sore muscles when exercise and not enough O2 is available burning sensation