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Cellular Respiration

Cellular Respiration. Bellwork. Which of the following organisms can undergo cellular respiration?. Objectives. Write the chemical reaction for cellular respiration Describe the biochemical pathways involved in cellular respiration Identify the inputs and outputs of each biochemical pathway.

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Cellular Respiration

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  1. Cellular Respiration

  2. Bellwork • Which of the following organisms can undergo cellular respiration?

  3. Objectives • Write the chemical reaction for cellular respiration • Describe the biochemical pathways involved in cellular respiration • Identify the inputs and outputs of each biochemical pathway

  4. Key Terminology • Aerobic • Anaerobic • Glycolysis • Krebs cycle • Oxidative electron transport • Mitochondrial matrix • Inner membrane of Mitochondria

  5. Energy flow in ecosystem

  6. Cellular Respiration • Definition: The process cells use to breakdown complex organic molecules for the production of energy • Chemical Reaction Glucose + O2 CO2 + H2O + energy

  7. Overview • Animation

  8. Paraphrase Write down at least one key point you gained from the Overview Animation: 6 PROPERTY OF PIMA COUNTY JTED, 2010 PROPERTY OF PIMA COUNTY JTED, 2010

  9. Biochemical Pathways involved in Cellular Respiration • Three major pathways in this process: • Glycolysis • Krebs cycle • also known as the Citric Acid Cycle • Oxidative Electron Transport

  10. Structure of Mitochondria • Oxidative Electron Transport • located in inner membrane • Krebs cycle • located in mitochondrial matrix (thick liquid inside inner membrane)

  11. Location of Pathways within the Cell Oxidative Electron Transport In the Inner Membrane Matrix

  12. Glycolysis • Main function • to break down Glucose and produce pyruvate • Takes place outside the mitochondria • in the cytoplasm of the cell • Makes 2 ATP molecules • Pyruvate enters mitochondria and modified • Into Acetyl CoA for next step

  13. Process of Glycolysis • Animation

  14. Paraphrase Write down at least one key point you gained from the Glycolysis Animation: 6 PROPERTY OF PIMA COUNTY JTED, 2010 PROPERTY OF PIMA COUNTY JTED, 2010

  15. Summary of Glycolysis

  16. Krebs Cycle • Main function • break down Acetyl CoA to CO2 • produce NADH and FADH2 • Carriers of high energy electrons • Located in the mitochondrial matrix • Makes 2 ATP molecules • The CO2 you exhale is made in this pathway

  17. Process of Krebs Cycle • Animation

  18. Paraphrase Write down at least one key point you gained from the Krebs Cycle Animation: 6 PROPERTY OF PIMA COUNTY JTED, 2010 PROPERTY OF PIMA COUNTY JTED, 2010

  19. Summary of Krebs Cycle

  20. Oxidative Electron Transport • Main Function • Accepts energized electrons from NADH and FADH2 • Passes those electrons to O2 • O2 is ultimate electron acceptor • producing H20 • Located within inner membrane of mitochondria • Electron flow provides energy • for ATP production

  21. Process of Oxidative ElectronTransport • Animation

  22. Paraphrase Write down at least one key point you gained from the Oxidative Electron Transport Animation: 6 PROPERTY OF PIMA COUNTY JTED, 2010 PROPERTY OF PIMA COUNTY JTED, 2010

  23. Summary of Oxidative Electron Transport

  24. Comparison of PSET to OxET • Electron donor • H2O • Electron Acceptor • NADP+ • Electron donor • NADH, FADH2 • Electron Acceptor • O2 Photosynthetic Electron Transport PSET Oxidative Electron Transport OET

  25. Letter or Note to a Friend Write a note to a friend or absent classmate explaining 3 differences between Glycolysis, Krebs Cycle and Oxidative Electron Transport in cellular respiration 25 PROPERTY OF PIMA COUNTY JTED, 2010

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