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  • I'm here in the kitchen to find something to eat and get some energy. How do we get energy from food? Well, cellular respiration of course.
  • You see these two pieces food? Well cellular respiration breaks down the glucose and the food molecules and releases energy, with the help of oxygen of course . Let me tell you more
  • there are three steps of cellular respiration. the first one, glycolysis, breaks down sugars into pyruvate. This step takes place in the cytoplasm.
  • Then the Krebs cycle, the second step, generates energy (ATP, NADH, and FADH2) from the oxidation of Pyruvate. That takes place in the mitochondria. I know this is a lot but lets move on to the third step
  • The third step is electron transport chain (ETC). This process includes complexes found in the mitochondrial membrane accepting electrons from carriers and donors
  • The reactants of cellular respiration are oxygen and glucose, and the products are water, carbon dioxide, and energy. So there. whenever you think "Oh wow! that protein bar gave me a lot of energy", think of cellular respiration.
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