Cellular respiration


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Cellular respiration

  1. 1. Review Game I hope you studied!
  2. 2. Mitochondria <ul><ul><li>WHERE </li></ul></ul><ul><ul><li>MOST ENERGY </li></ul></ul><ul><ul><li>IS PRODUCED </li></ul></ul><ul><ul><li>IN CELLULAR </li></ul></ul><ul><ul><li>RESPIRATION </li></ul></ul>
  3. 3. Mitochondrial disease <ul><li>Results from failure of the mitochondria </li></ul><ul><li>Mitochondria are responsible for 90% of the energy needed by the body to sustain life </li></ul><ul><li>Cell fails - tissue fail - organ fail - death </li></ul><ul><li>SYMPTOMS: motor control, muscle weakness and pain, gastro-intestinal disorders and swallowing difficulties, poor growth, cardiac disease, liver disease, diabetes, respiratory complications, seizures, visual/hearing problems, lactic acidosis, developmental delays and susceptibility to infection </li></ul>
  4. 4. Cellular Respiration Cellular respiration vs Photosynthesis The energy from the mitochondria is produced in a processes called:
  5. 5. Yeast Lab <ul><li>Yeast are small organisms that use sugar to make energy. </li></ul><ul><li>Follow the procedure in your notes. Make sure you make observations about what is going on. </li></ul><ul><li>Later in class you will be able to make a inference about where the air in the balloon is coming from </li></ul>
  6. 6. Cellular respiration <ul><li>What is it? </li></ul><ul><ul><li>Cellular Respiration – process that produces energy by breaking down glucose and other food molecules in the presence of oxygen . </li></ul></ul><ul><ul><li>MAIN POINT: </li></ul></ul><ul><ul><ul><li>GLUCOSE (an organic molecule) ATP (a form of energy the body can use) </li></ul></ul></ul>
  7. 7. Who performs Cellular Respiration? <ul><li>EVERY LIVING THING!! </li></ul><ul><ul><li>Animals, plants, fungi…anything that is living. </li></ul></ul><ul><ul><li>Every living thing needs to convert sugars into energy so they all perform RESPIRATION. </li></ul></ul><ul><li>PLANTS & ANIMALS PERFORM CELLULAR RESPIRATION </li></ul><ul><li>PLANTS & ANIMALS PERFORM CELLULAR RESPIRATION </li></ul><ul><li>PLANTS & ANIMALS PERFORM CELLULAR RESPIRATION </li></ul>
  8. 8. Location, location, location <ul><li>Cellular Respiration occurs mainly in the mitochondria of cells & in the cytoplasm. </li></ul><ul><li>Why do you think the mitochondria have so many folds? </li></ul>
  9. 9. The break down <ul><li>cellular respiration is broken down into 3 parts. </li></ul><ul><ul><li>Glycolysis - Cytoplasm </li></ul></ul><ul><ul><li>Krebs Cycle - Mitochondria </li></ul></ul><ul><ul><li>Electron Transport Chain – Mitochondria </li></ul></ul><ul><li>Each of the steps of cellular respiration produces a different amount of ATP. </li></ul>
  10. 10. Step 1 Glycolysis <ul><li>Glycolysis – process in which one molecule of glucose is broken in half </li></ul><ul><ul><li>Produces: </li></ul></ul><ul><ul><ul><li>2molecules of pyruvic acid </li></ul></ul></ul><ul><ul><ul><li>2 Molecules of ATP </li></ul></ul></ul><ul><li>Glyco= Made of Sugar </li></ul><ul><li>Lysis= To cut </li></ul>
  11. 11. Name depends on Oxygen <ul><li>If Oxygen is present (aerobic) </li></ul><ul><ul><li>Cellular respiration </li></ul></ul><ul><li>If Oxygen is absent (which is?) </li></ul><ul><ul><li>Fermentation </li></ul></ul>
  12. 12. Step Two: If oxygen is present <ul><li>Krebs Cycle </li></ul><ul><ul><li>Pyruvic acid CO2 </li></ul></ul><ul><li>Location- Inside the mitochondria </li></ul><ul><li>6 Molecules of ATP are produced. </li></ul><ul><ul><li>CO2 is waste </li></ul></ul>
  13. 13. If Oxygen is present step 3 <ul><li>The Electron Transport Chain </li></ul><ul><ul><li>uses high energy electrons to convert many ADP to ATP . </li></ul></ul><ul><li>Waste: H2O </li></ul><ul><li>Most ATP is produced!!!! </li></ul><ul><ul><li>36 ATP </li></ul></ul>
  14. 14. Cytoplasm Mitochondria Matrix Mitochondria inner membrane 2 (Net) 6 28 2 Pyrivic Acid 6 CO 2 6 H 2 O Overview of the steps/ATP Production and Waste Step Location ATP Produced Products Glycolysis Krebs Cycle ETC
  15. 15. If no oxygen is present FERMENTATION
  16. 16. Fermentation <ul><li>Fermentation – process by which cells release energy (ATP) from food molecules in the absence of oxygen . </li></ul><ul><ul><li>Anaerobic – “not in air”; no oxygen. </li></ul></ul><ul><ul><li>Does NOT need mitochondria either </li></ul></ul><ul><ul><li>Glycolysis still has to happen first! (just like in cellular respiration. ) </li></ul></ul><ul><li>2 types of fermentation: </li></ul><ul><li>Alcoholic and Lactic Acid Fermentation </li></ul><ul><li>Glycose Lactic Acid </li></ul>
  17. 17. Alcoholic Fermentation <ul><li>Yeast and a few other microorganisms use alcoholic fermentation. </li></ul><ul><li>Forms alcohol and CO 2 as wastes. </li></ul>
  18. 18. <ul><li>Sore? </li></ul><ul><li>Your muscles run out of oxygen so cells begin rapidly producing ATP by lactic acid fermentation. </li></ul><ul><li>The build up of acid causes a burning sensation. </li></ul><ul><li>You breath heavily after exercise to repay the oxygen dept . </li></ul>
  19. 19. Photosynthesis and Cellular Respiration are OPPOSITES of each other <ul><li>Plants take in CO2 and give off O2 and Animals take in O2 and give off CO2. </li></ul>
  20. 20. The Relationship of Cellular Respiration and Photosynthesis <ul><li>Plants ( autotrophs ) use BOTH processes </li></ul><ul><li>Animals ( heterotrophs ) only use ONE process; cellular respiration. </li></ul>
  21. 21. Photosynthesis and Cellular Respiration are OPPOSITES of each other <ul><li>The products of photosynthesis are the reactants for cellular respiration and the products of cellular respiration are the reactants for photosynthesis </li></ul>