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Cellular Respiration. What is respiration?. What do you notice about this equation?. How is the energy stored?. Where does it happen?. Starts in cytoplasm Finishes in the mitochondria. Step One: Glycolysis. Where? Glucose is split in half, making two pyruvates .
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What is respiration? • What do you notice about this equation?
Where does it happen? • Starts in cytoplasm • Finishes in the mitochondria
Step One: Glycolysis • Where? • Glucose is split in half, making two pyruvates. • Energy from the broken bond makes
Step Two: Kreb’s Cycle • Where? • Acetyl CoA is made using oxygen. • What else is made? • Broken bonds make • The Acetyl CoA is broken down, creating stored energy for step three.
Step Three:Electron Transport Chain • Stored energy from the Kreb’s Cycle is used to make • The leftover hydrogen combines with oxygen to make water.
Summary • Glycolysis • Where? • What was made? • What is necessary to go to the next step? • Kreb’s Cycle • Where? • What was made? • Electron Transport Chain • Where? • What was made? • Total ATP from one glucose?
What if there is no oxygen? • Fermentation happens after glycolysis. • In yeast and bacteria, pyruvate is turned into alcohol. • In animals, pyruvate is turned into lactic acid. • No more ATP is made! • This is called anaerobic respiration.