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Transcript
Anaerobic Respiration Questions to Consider: What role does oxygen (O2) play in cellular respiration? When is it used? What does it do? What would happen if a cell did not have oxygen? What two processes would shut down? Anaerobic Respiration • If a cell lacks oxygen, anaerobic respiration (fermentation) takes place • In anaerobic respiration, glycolysis occurs as usual • Glucose is broken down into pyruvate, NADH, and ATP • Must regenerate (re-make) NAD+ in order to continue glycolysis Anaerobic Respiration In order to regenerate NAD+, two possible options for pyruvate Lactic acid (mammals and bacteria) Alcohol (yeast)