Cellular respiration is the process that releases energy from glucose and other molecules with oxygen. It occurs in the mitochondria and produces ATP, which cells use to power chemical reactions. There are two types of respiration - aerobic respiration uses oxygen to produce a large amount of ATP, while anaerobic respiration does not use oxygen and produces only a small amount of ATP through fermentation. Overall, cellular respiration breaks down glucose to produce water, carbon dioxide, and 36 ATP molecules.

1. Cellular Respiration What we do with our energy

3. Anaerobic vs. aerobic Uses no oxygen Makes a little energy Uses oxygen Makes a lot of energy

4. Overview Of Cellular Respiration Cellular respiration is the process that releases energy by breaking down glucose and other molecules in the presence of oxygen. Occurs in the Mitochondria

5. To release energy from food molecules and make ATP! Why do we need ATP? ATP is the energy molecule needed by our cells Our cells use ATP to make all of the chemical reactions in our body run. Purpose of cellular respiration?

6. Summary equation for Respiration

7. What if there is no Oxygen?

8. Anaerobic respiration Not enough oxygen for aerobic respiration Fermentation-releases energy from food molecules by producing ATP in the absence of oxygen. (Anaerobic = no oxygen) Two types: alcoholic fermentation, lactic acid fermentation

9. Lactic acid vs alcoholic No oxygen Occurs in muscles Pyruvates  lactate Occurs so muscles can continue making ATP Get lactate build up in muscles Causes soreness No oxygen Pyruvate  carbon dioxide & ethanol Seen in yeast and fungus Used to make beverages, food, makes dough rise

10. Overall Cellular Respiration breaks down Glucose (C 6 H 12 O 6) . It produces H 2 O and CO 2 It produces 36 ATPs!

11. Comparing Photosynthesis & Cellular Respiration Photosynthesis Cellular Respiration Function Energy capture Energy Release Location Chloroplasts Mitochondria Reactants Carbon dioxide and water Glucose and oxygen Products Glucose and oxygen Carbon dioxide and water