Ls4 photosynthesis

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Ls4 photosynthesis

  1. 1. Plants and photosynthesis
  2. 2. All organisms on Earth need energy to live and grow.
  3. 3. The primary source of all energy that Earth’s organisms need is the Sun.
  4. 4. But animals can’t eat sunlight.
  5. 5. But animals can’t eat sunlight. Animals get energy by consuming (eating) other organisms (plants or animals).
  6. 6. Animals are consumers.
  7. 7. Animals are consumers.
  8. 8. Animals are consumers.
  9. 9. Animals must eat (consume) to get the energy they need.
  10. 10. But there is one type of organism that can produce food from sunlight energy. Plants Plants are producers. Produce means “to make.” Producers make food from sunlight energy.
  11. 11. But there is one type of organism that can produce food from sunlight energy. Plants Plants are producers. Produce means “to make.” Producers make food from sunlight energy.
  12. 12. But there is one type of Plants are producers. organism that can produce food from sunlight energy. Plants Plants are producers. Produce means “to make.” Producers make food from sunlight energy.
  13. 13. But there is one type of Plants are producers. organism that can produce food from sunlight energy. Produce means “to make.” Plants Plants are producers. Produce means “to make.” Producers make food from sunlight energy.
  14. 14. Producers make food from sunlight energy.
  15. 15. Plants are producers. They make food. Only plants can make food.
  16. 16. Plants make food in their leaves.
  17. 17. A green material in leaves called chlorophyll (klor oh fil) turns light energy from the sun into chemical energy (sugar).
  18. 18. Plants must have three things in order to make food. light water CO2 (Carbon dioxide)
  19. 19. Plants must have three things in order to make food. light
  20. 20. Plants must have three things in order to make food. light water
  21. 21. Plants must have three things in order to make food. light water H2Oalso called
  22. 22. Plants must have three things in order to make food. light water H2Oalso called Carbon dioxide
  23. 23. Plants must have three things in order to make food. light water H2Oalso called Carbon dioxide CO2
  24. 24. Plants get the light they need from the Sun.
  25. 25. Plants get the CO2, carbon dioxide, they need from the air.
  26. 26. CO2 (carbon dioxide) is a gas that makes up about 1% of Earth’s atmosphere.
  27. 27. Plants get the water they need from their roots.
  28. 28. The process of plants turning sunlight energy, CO2, and water into chemical energy (food, sugar) is called
  29. 29. The process of plants turning sunlight energy, CO2, and water into chemical energy (food, sugar) is called photosynthesis
  30. 30. The process of plants turning sunlight energy, CO2, and water into chemical energy (food, sugar) is called photosynthesis (foh toh sin theh sis)
  31. 31. photosynthesis Photo means “light”
  32. 32. photosynthesis Photo means “light” synthesis mean “to put together”
  33. 33. photosynthesis Photo means “light” synthesis mean “to put together” Photosynthesis mean “to put together with light.”
  34. 34. photosynthesis Photo means “light” synthesis mean “to put together” Photosynthesis mean “to put together with light.” Plants “put food together” using light energy in the process called photosynthesis.
  35. 35. Plants take in carbon dioxide (CO2) and use it during photosynthesis.
  36. 36. Plants release (throw away) oxygen as a waste product as they make food.
  37. 37. Plants release (throw away) oxygen as a waste product as they make food. Oxygen is a gas that makes up 21% of the air.
  38. 38. Plants can’t live without CO2 and must release oxygen. Animals can’t live without oxygen and must release CO2.
  39. 39. This is a very important balance for life on Earth.
  40. 40. Review:
  41. 41. Review: What waste gas is released by plants as they make food?
  42. 42. Review: What waste gas is released by plants as they make food? Oxygen
  43. 43. Review: What gas is needed by plants as they make food?
  44. 44. Review: What gas is needed by plants as they make food? Carbon dioxide; CO2
  45. 45. Review: What waste gas is released by animals as they live and breathe?
  46. 46. Review: What waste gas is released by animals as they live and breathe? Carbon dioxide; CO2
  47. 47. Review: What is the process in which plants make food from sunlight?
  48. 48. Review: What is the process in which plants make food from sunlight? Photosynthesis
  49. 49. Review: In what part of the plant is food (chemical energy; sugar) made during photosynthesis?
  50. 50. Review: In what part of the plant is food (chemical energy; sugar) made during photosynthesis? The leaves
  51. 51. Review: What is the name for the chemical energy that plants need to live and grow?
  52. 52. Review: What is the name for the chemical energy that plants need to live and grow? Sugar
  53. 53. Review: What is the name of the green substance in plants that uses sunlight energy to make sugar in the leaves of plants?
  54. 54. Review: What is the name of the green substance in plants that uses sunlight energy to make sugar in the leaves of plants? Chlorophyll
  55. 55. Review: What is the name for the chemical energy that plants need to live and grow?
  56. 56. Review: What is the name for the chemical energy that plants need to live and grow? Sugar
  57. 57. Review: What is the name for the chemical energy that animals need to live and grow?
  58. 58. Review: What is the name for the chemical energy that animals need to live and grow? Sugar
  59. 59. What three things do plants need in order to make food in photosynthesis?
  60. 60. What three things do plants need in order to make food in photosynthesis? Sunlight
  61. 61. What three things do plants need in order to make food in photosynthesis? Sunlight Water
  62. 62. What three things do plants need in order to make food in photosynthesis? Sunlight Water H2O
  63. 63. What three things do plants need in order to make food in photosynthesis? Sunlight Water H2O Carbon dioxide
  64. 64. What three things do plants need in order to make food in photosynthesis? Sunlight Water H2O Carbon dioxide CO2
  65. 65. Review: What is another way to say carbon dioxide?
  66. 66. Review: What is another way to say carbon dioxide? CO2
  67. 67. Review: What is another way to say water?
  68. 68. Review: What is another way to say water? H2O
  69. 69. Photosynthesis sunlight CO2 Carbon dioxide H2O water
  70. 70. Photosynthesis sunlight CO2 Carbon dioxide H2O water
  71. 71. Photosynthesis sunlight CO2 Carbon dioxide H2O water

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