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CELLULAR RESPIRATION What is cellular respiration? ð The process by which cells break down simple food molecules (glucose) to release energy. Glucose What is the chemical formula for cellular respiration? → Oxygen Carbon Dioxide Water Glucose REACTANTS PRODUCTS C6H12O6 + 6 O2 à 6 CO2 + 6 H2O Glucose Oxygen Carbon Dioxide Water What are the two stages of cellular respiration? ð 1st Stage – Occurs in the cytoplasm No oxygen is involved (anaerobic) Very little energy is released ð 2nd Stage – Occurs in mitochondria Oxygen is involved (aerobic) Lots of energy is released What is the difference between photosynthesis and respiration? ð Cellular respiration & photosynthesis can be thought of as opposite processes. ð All organisms do cellular respiration! Only plants and some protists do photosynthesis. What is fermentation? ð Bacteria do not have mitochondria therefore can only do the 1st stage of cellular respiration. ð The 1st stage of cellular respiration is called fermentation. Also called anaerobic respiration. (without oxygen) Types of Fermentation ! Alcohol Fermentation occurs in yeast cells ! Lactic Acid Fermentation occurs in muscle cells in the body