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Set up Cornell Notes on pg. 51 Topic: 4.4/4.5 Intro to Cellular Respiration Essential Question :

4.4 Intro to Cellular Respiration. 2.1 Atoms, Ions, and Molecules. Set up Cornell Notes on pg. 51 Topic: 4.4/4.5 Intro to Cellular Respiration Essential Question : What is the difference between aerobic and anaerobic processes?

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Set up Cornell Notes on pg. 51 Topic: 4.4/4.5 Intro to Cellular Respiration Essential Question :

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  1. 4.4 Intro to Cellular Respiration 2.1 Atoms, Ions, and Molecules • Set up Cornell Notes on pg. 51 • Topic: 4.4/4.5 Intro to Cellular Respiration • Essential Question: • What is the difference between aerobic and anaerobic processes? • What processes in cellular respiration are aerobic? Anaerobic? • What is the difference between aerobic and anaerobic processes? • What processes in cellular respiration are aerobic? Anaerobic? KEY CONCEPT The overall process of cellular respiration converts sugar into ATP using oxygen.

  2. KEY CONCEPT The overall process of cellular respiration converts sugar into ATP using oxygen.

  3. Pg. 50 Discussion Question #1 Try and hold your breath for as long as you can (no cheating). How did you feel as you were holding your breath? Why do you think you felt this way? If you were to run a few miles, what would happen to your breathing?

  4. Discussion Question # 2 How does your body use oxygen? • Oxygen helps your body break down chemical energy that is stored in sugars and other carbon based molecules. • The energy produced is ATP ATP

  5. Compare the reactants and products. What do you notice?

  6. Plants use photosynthesis to make their own food • Animals eats other organisms as food • Food is not the direct source of energy • Instead we break down molecules from food to produce ATP • Plants break down stored glucose to produce ATP • Cellular respiration releases chemical energy from sugars (produced by photosynthesis) and other carbon-based molecules to make ATP when oxygen is present

  7. Two “Stages” • Light Dependent- ETC-Fuels Light Independent • Light Independent- Calvin Cycle- Makes Glucose • Two “Stages” • Stage I- Kreb’s Cycle- Fuels Stage II • Stage II- ETC- Makes lots of ATP!

  8. Two “Stages” • Light Dependent- ETC-Fuels Light Independent • Light Independent- Calvin Cycle- Makes Glucose • Two “Stages” • Stage I- Kreb’s Cycle- Fuels Stage II • Stage II- ETC- Makes lots of ATP!

  9. Cellular respiration releases chemical energy from glucose (produced by photosynthesis) and other carbon-based molecules to make ATP when oxygen is present • Cellular respiration is aerobic, or requires oxygen. O2

  10. Cellular respiration takes place in mitochondria “the powerhouse of the cell”

  11. Glycolysismust take place first. It happens in the cell’s cytoplasm • anaerobic process (does not require oxygen) • splits glucose (from photosynthesis) into two three-carbon molecules called pyruvates • these will be broken down in the mito to make many more ATP • produces two ATP molecules Draw on P. 51 “Sweet Split” 2 pyruvates ATP

  12. There are two main parts to a mitochondria: 1. Matrix- area inside the inner membrane- Kreb’s Cycle 2. Inner membrane- Electron Transport

  13. 1 2 3 4 Glycolysis: 1. 3. Takes place in ___________ 2. 5. 4. 6. 7. 8. Takes place in the _____________

  14. 1 2 3 4 Glycolysis: Glucose is broken down into 2 3-carbon molecules 1. Mitochondria ATP 3. Kreb’s Cycle Takes place in the Matrix 5. Energy 2. 2 Pyruvates 4. 6 CO2 Energy from Glycolysis ATP 6. 6 O2 7. 6 H2O 8. Electron Transport Chain Takes place in the Inner Membrane

  15. ATP and Cellular Respiration (4m12s)

  16. The equation for the overall process is: C6H12O6 + 6O2  6CO2 + 6H2O + ATP • The reactants in photosynthesis are the same as the products of cellular respiration.

  17. Pg. 50 in INB Pg. 115 in book Cellular Respiration …..Reactants….. Stage 1 Stage 2 1. 2. 3. 4. …..Products…..

  18. 1 ATP mitochondrion matrix (area enclosed by inner membrane) and 6CO 2 energy 2 3 energy from glycolysis ATP inner membrane and and 6H O 6O 2 2 4 Stage I • The Krebs cycle takes place inthe mitochondrial matrix • 2 pyruvates enter cellular respiration • Pyruvates are broken down and a small amount of ATP (x2) is made during the Kreb’sCycle • ATP transfers energy-carrying molecules to Stage II: The Electron Transport Chain • releases carbon dioxide as waste Krebs Cycle

  19. 1 ATP mitochondrion matrix (area enclosed by inner membrane) and 6CO 2 energy 2 Electron Transport 3 energy from glycolysis ATP inner membrane and and 6H O 6O 2 2 4 Stage II • The electron transport chain produces a large amount of ATP and takes place in the inner membrane • 3. Energy from Stage I transferred to proteins in the inner membrane • 4. oxygen enters process and is used to make H2O • A large number of ATP (x up to 34) molecules are produced • water and heat are released

  20. Cellular Respiration Sugar (2 pyruvates) O2 …..Reactants….. Stage 1 Stage 2 E.T.C.: Energy is transferred to proteins in the inner membrane of the mito. Energy is transferred to the E.T. C. A large # of ATP is made (34). O2 is used to make H2O The Kreb’s Cycle breaks down pyruvates into ATP (2) H2O CO2 Heat …..Products…..

  21. Cellular Respiration • Up to 38 ATP molecules are made from the breakdown of one glucose molecule • 2 from glycolysis • 2 from Kreb’s • Up to 34 from Electron Transport 38

  22. Video • Glycolysis and Cellular Respiration (1m53s)

  23. Photosynthesis & Cellular Respiration 2.1 Atoms, Ions, and Molecules • Set up Cornell Notes on pg. 53 • Topic: Photosynthesis & Cellular Respiration • Essential Question: 1. Describe the relationship between cellular respiration and photosynthesis in a double-bubble map. 1. Describe the relationship between cellular respiration and photosynthesis in a double-bubble map.

  24. Video • Cellular Respiration Overview (4m 28s)

  25. EQ: Please create a Double-bubble map comparing and contrasting Photosynthesis and Cellular Respiration. Pg. 52 in INB Cellular Respiration Photosynthesis Include: Reactants/Products, organisms that undergo each, Organelles, chemical equation, etc…

  26. White board: Cellular Respiration Photosynthesis

  27. Reactants • Light Energy • CO2 • H2O Reactants • Glucose • O2 Plants Kreb’s Cycle Energy ATP Cellular Respiration Photosynthesis Mitochondria Chloroplast Animals Calvin Cycle Chemical Reactions Products • CO2 • H2O • Heat Products • Glucose (sugar) • O2 E.T.C ATP 2 Main Stages

  28. Two “Stages” • Light Dependent- ETC-Fuels Light Independent • Light Independent- Calvin Cycle- Makes Glucose • Two “Stages” • Stage I- Kreb’s Cycle- Fuels Stage II • Stage II- ETC- Makes lots of ATP!

  29. P. 53 Labeling 1-9 Photosynthesis and Cellular Respiration Cycle Diagram

  30. Life on Earth is solar powered, and energy makes a one-way trip through an ecosystem • Chemicals, however, are recycled • The CO2 and H2O released by cellular respiration are converted through photosynthesis to glucose and O2, which are then used again in respiration Photosynthesis CO2 and H2O Glucose and O2 • Cellular respiration

  31. On pg. 53- Label each part of this diagram 1. 2. 3. 9. 4. 8. 6. 5. 7.

  32. 1. Photosynthesis 2. Chloroplast 3. C6H12O6 9. CO2 4. O2 8. H2O 5. Cellular Respiration 6. Mitochondria 7. ATP

  33. Pg. 53 in INB • Please make a diagram showing the relationship between Photosynthesis and Cellular Respiration • Title of Process • Organelle • Organism Products Products • Title of Process • Organelle • Organism

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