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Energy, Photosynthesis & Respiration

Energy, Photosynthesis & Respiration. Chapter 4 Organized by FL Item Specs. Big Picture. SC.912.L.18.9 - Explain the interrelated nature of photosynthesis and cellular respiration. What is photosynthesis? What is cellular respiration? How are they interrelated?. Photosynthesis.

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Energy, Photosynthesis & Respiration

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  1. Energy, Photosynthesis & Respiration Chapter 4 Organized by FL Item Specs

  2. Big Picture • SC.912.L.18.9 - Explain the interrelated nature of photosynthesis and cellular respiration. • What is photosynthesis? • What is cellular respiration? • How are they interrelated?

  3. Photosynthesis • Photosynthesis • Photo- = light -synthesis = put stuff together • Light  Sugars • In = Sunlight, Water, & Carbon Dioxide (CO2) • Out = Glucose (Sugar) & Oxygen (O2) • Overall - CO2 + H2O + (Sunlight ENERGY)  Glucose + O2 CO2 + H2O  C6H12O6 + O2

  4. Respiration • Respiration • Glucose  Energy (ATP) • In = Glucose (Sugar) & Oxygen (O2) • Out = ATP (ENERGY), Water, & Carbon Dioxide (CO2) • Overall - Glucose + O2  CO2 + H2O + ATP (ENERGY) C6H12O6 + O2  CO2 + H2O

  5. Check knowledge 1. What is the function of the chloroplast? 2. What goes into the chloroplast? 3. What are the reactants of photosynthesis? 4. Where do each of the reactants come from? 5. What is the overall reaction of photosynthesis?

  6. Check knowledge ANSWERS 1. What is the function of the chloroplast? • Convert sunlight energy into sugars 2. What goes into the chloroplast? • Sunlight, carbon dioxide, and water 3. What are the reactants of photosynthesis? • Sunlight, carbon dioxide, and water

  7. Check knowledge ANSWERS2 4. Where do each of the reactants come from? • Sunlight – leaves absorb it • CO2 – stomata on the leaves • H2O – roots from soil 5. What is the overall reaction of photosynthesis? • CO2 + H2O  C6H12O6 + O2 • Carbon Dioxide + Water  Sugars + Oxygen

  8. Check knowledge 2 • What is the function of the mitochondrion? • What goes into the mitochondrion? • What are the reactants of respiration? • Where do each of the reactants come from? • What is the overall reaction of respiration?

  9. Check knowledge 2 ANSWERS • What is the function of the mitochondrion? • Convert sugars (food) to energy (ATP) • What goes into the mitochondrion? • Glucose and oxygen • What are the reactants of respiration? • Glucose and oxygen

  10. Check Knowledge 2 ANSWERS2 • Where do each of the reactants come from? • Glucose – food for animals or chloroplasts for plants • Oxygen – lungs/gills/skin for animals OR stomata for plants • What is the overall reaction of respiration? • C6H12O6 + O2  CO2 + H2O

  11. Do you know your info? • SC.912.L.18.7 - Identify the reactants, products, and basic functions of photosynthesis. • SC.912.L.18.8 - Identify the reactants, products, and basic functions of aerobic and anaerobic cellular respiration. • Aerobic vs. anaerobic will be discussed later

  12. Photosynthesis and respiration related? • Photosynthesis produces _______, and is sent to the mitochondrion to be converted into _________. • Gases • Photosynthesis (plants) produce __ • Animals use the __ (make ATP) then produce ___ • Plants use the ___ (make sugars) then produce __

  13. Photosynthesis and respiration related? • Photosynthesis produces sugars or glucose, and is sent to the mitochondrion to be converted into energy or ATP. • Gases • Photosynthesis (plants) produce O2 • Animals use the O2(make ATP) then produce CO2 • Plants use the CO2(make sugars) then produce O2

  14. Chemical Interrelation • Equation for Photosynthesis • CO2 + H2O  C6H12O6 + O2 • Equation for Respiration • C6H12O6 + O2  CO2 + H2O • Reactants for photosynthesis are the products of ________ • Products of photosynthesis are the reactants of ______

  15. Chemical Interrelation • Equation for Photosynthesis • CO2 + H2O  C6H12O6 + O2 • Equation for Respiration • C6H12O6 + O2  CO2 + H2O • Reactants for photosynthesis are the products of respiration • Products of photosynthesis are the reactants of respiration

  16. Which one? • Which stores energy? • In what form? • Which releases energy? • In what form

  17. Which one? • Which stores energy? • Photosynthesis • In what form? • Glucose or sugars • Which releases energy? • Respiration • In what form • ATP

  18. Objectives • ** Students will explain how the products of photosynthesis are used as reactants for cellular respiration and vice versa. • ** Students will explain how photosynthesis stores energy and cellular respiration releases energy. • ** Students will connect the role of adenosine triphosphate (ATP) to energy transfers within the cell.

  19. Aerobic vs. Anaerobic • Aerobic – requires O2 • Anaerobic – NOT requires O2 • Aerobic respiration = 36 ATP per glucose • Anaerobic respiration = 2 ATP per glucose

  20. Anaerobic Respiration • Can be called Fermentation as well as anaerobic respiration • Lactic Acid fermentation • Glucose  2 ATP + 2 Lactic acid • Responsible for the “burn” in your muscles when weight lifting • Yogurt & cheese • Alcoholic fermentation • Glucose  2 ATP + 2CO2 + 2 Alcohol • Bread, wine, & biofuel

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