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Transcript
Anaerobic Respiration What if there is not enough oxygen to do aerobic respiration? Some organisms, such as yeast and some bacteria, do not require oxygen and can survive on a less efficient way of getting energy Other organisms that generally require oxygen sometimes don’t have enough for all their cells to do aerobic respiration so they can use a less effiecent way of breaking down glucose which keeps their electron carriers available for when the cells get oxygen again. Anaerobic Respiration No Oxygen required. Also called Fermentation. 2 types: alcoholic and lactic acid Both start with glycolysis Pyruvate and 2 ATP produced No Krebs or electron transport chain. Lactic Acid Pyruvate lactic acid Carried out by your muscles when you’re exercising hard and can’t get enough oxygen fast enough (can’t do aerobic respiration) Causes muscle cramps and soreness Alcoholic Pyruvate ethyl alcohol Carried out by yeast and some bacteria. Used in brewing beer, making wine, and baking bread and cakes