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  1. 1. Photosynthesis and RespirationHow are they related?
  2. 2. PhotosynthesisThe process of photosynthesis is a chemical reaction.It is the most important chemical reaction on our planet.
  3. 3. What is the Process? The process of changing light energy (from the sun or other light source) to chemical energy This energy is stored as sugar (a carbohydrate) Occurs in plants and some algae Plants need light energy, CO 2 , and H 2 O Photosynthesis takes place in the chloroplasts, using
  4. 4. What Happens in thisChemical Reaction?
  5. 5. How Do Scientists Writethis Chemical Reaction?  What does this mean? Six molecules of carbon dioxide react with six molecules of water to form 1 molecule of glucose and six molecules of oxygen.
  6. 6. HUH? Plants capture light energy and use that energy to make sugar (which can be changed to starch, a carbohydrate, also) Sunlight provides the energy needed by chlorophyll to change molecules of carbon dioxide and water into glucose Oxygen is also released in this reaction
  7. 7. Why Is This So Important? We cannot make our own food (glucose, energy), we must get our food from plants. Plants are the first step in the food chain. The oxygen released during photosynthesis is necessary for all living things.
  8. 8. Respiration There are two types of respiration: and
  9. 9. What is Cellular Respiration? The process of cellular respiration is a chemical reaction . It is the most important chemical reaction in our bodies
  10. 10. What is the Process? Cellular respiration is a process, like photosynthesis. Cellular respiration takes place in the mitochondria. The mitochondria take in nutrients (glucose and oxygen), break them down, and create energy for the cell. This process of creating cell energy is known as cellular respiration. Takes place in all living things (even plants!)
  11. 11. Let’s Write the Chemical EquationGlucose + Oxygen Carbon Dioxide + Water Or another way of writing the equation is:C 6 H 12 O 6 + 6O 2 6CO 2 + 6H 2 O
  12. 12. Notice Any Similarities?
  13. 13.  Notice any now?
  14. 14. Any Similarities with These?
  15. 15. Photosynthesis andRespiration are Related  It is the basic cycle on Earth.
  16. 16.  Some information from