Photosynthesis

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Presentation slides for Photosynthesis. (Animations are not available & slide 22 is an extra)

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Photosynthesis

  1. 1. PhotosynthesisWednesday, October 26, 11
  2. 2. Introduction • Where do we get our food? • Plant • How do plants make food? • PhotosynthesisWednesday, October 26, 11
  3. 3. Time to fill in your notes • Plants make their own food. This process is called photosynthesis. • Glucose is the product.Wednesday, October 26, 11
  4. 4. What is photosynthesis? • A process where plants make their own food by absorbing carbon dioxide, water and light energy.Wednesday, October 26, 11
  5. 5. What are the products? • They produce glucose and oxygen.Wednesday, October 26, 11
  6. 6. What do you give plants so that they don’t die? Carbon Light Water Dioxide EnergyWednesday, October 26, 11
  7. 7. What are the products? Glucose OxygenWednesday, October 26, 11
  8. 8. Equation for Photosynthesis ChlorophyllWednesday, October 26, 11
  9. 9. Effect of Light Intensity on the Rate of PhotosynthesisWednesday, October 26, 11
  10. 10. Effect of temperature on the Rate of PhotosynthesisWednesday, October 26, 11
  11. 11. Do you think it is good to supply light to plants for 24 hours? Why? • No • It is because the plant will keep on growing and run out of starch. Hence, it will die from starvation. • The rate of transpiration will also be high.Wednesday, October 26, 11
  12. 12. Why are there more plants in the equatorial region than the tundra region? • It is because, the optimum conditions are achieved.Wednesday, October 26, 11
  13. 13. Work on these questions with your friend. (Don’t use your notes) • What are the ingredients for photosynthesis? • What are the products for photosynthesis? • What is the main purpose of photosynthesis?Wednesday, October 26, 11
  14. 14. Answers • Carbon dioxide and water. • Glucose and Oxygen. • Plants have to photosynthesize so that they can get glucose for growing.Wednesday, October 26, 11
  15. 15. Summary Transformed Captured by & stored as Starch Co n tai Used to ne e di n Absorbed In sid produce by Takes in Produces New materials s out Give Such as by ed ed Ne Lipids, Needed Needed for Proteins for & SugarWednesday, October 26, 11
  16. 16. Summary Transformed Captured by & stored as Starch Co n tai Used to ne e di n Absorbed In sid produce by Takes in Produces New Green materials plant s out Give Such as by ed ed Ne Lipids, Needed Needed for Proteins for & SugarWednesday, October 26, 11
  17. 17. Summary Transformed Captured by Chlorophyll & stored as Starch Co n tai Used to ne e di n Absorbed In sid produce by Takes in Produces New Green materials plant s out Give Such as by ed ed Ne Lipids, Needed Needed for Proteins for & SugarWednesday, October 26, 11
  18. 18. Summary Transformed Captured by Chlorophyll Light energy & stored as Starch Co n tai Used to ne e di n Absorbed In sid produce by Takes in Produces New Green materials plant s out Give Such as by ed ed Ne Lipids, Needed Needed for Proteins for & SugarWednesday, October 26, 11
  19. 19. Summary Transformed Captured by Chlorophyll Light energy & stored as Starch Co n tai Used to ne e di n Absorbed In sid produce by Carbon Takes in Produces New dioxide Green materials plant s out Give Such as by ed ed Ne Lipids, Needed Needed for Proteins for & SugarWednesday, October 26, 11
  20. 20. Summary Transformed Captured by Chlorophyll Light energy & stored as Starch Co n tai Used to ne e di n Absorbed In sid produce by Carbon Takes in Produces New dioxide Green materials plant s out Give Such as Oxygen by ed ed Ne Lipids, Needed Needed for Proteins for & SugarWednesday, October 26, 11
  21. 21. Summary Transformed Captured by Chlorophyll Light energy & stored as Starch Co n tai Used to ne e di n Absorbed In sid produce by Carbon Takes in Produces New dioxide Green materials plant s out Give Such as Oxygen by ed ed Ne Lipids, Needed Needed for Proteins Water for & SugarWednesday, October 26, 11
  22. 22. Summary Transformed Captured by Chlorophyll Light energy & stored as Starch Co n tai Used to ne e di n Absorbed In sid produce by Carbon Takes in Produces New dioxide Green materials plant s out Give Such as Oxygen by ed ed Ne Lipids, Needed Needed for Proteins Water Plant growth for & SugarWednesday, October 26, 11
  23. 23. Summary Transformed Captured by Chlorophyll Light energy & stored as Starch Co n tai Used to ne e di n Absorbed In sid produce by Carbon Takes in Produces New dioxide Green materials plant s out Give Such as Oxygen by ed ed Ne Lipids, Needed Needed for Proteins Water Plant growth for & SugarWednesday, October 26, 11
  24. 24. Games and Animation • Photosynthesis Animation • Water for plants (Game) • Plants need minerals. (Game)Wednesday, October 26, 11

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