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Cellular Respiration

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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Cellular Respiration

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Presentation Transcript

  1. Cellular Respiration

  2. What is respiration? • What do you notice about this equation?

  3. How is the energy stored?

  4. Where does it happen? • Starts in cytoplasm • Finishes in the mitochondria

  5. Step One: Glycolysis • Where? • Glucose is split in half, making two pyruvates. • Energy from the broken bond makes

  6. 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.

  7. 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.

  8. 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?

  9. 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.

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