Importance of Photosynthesis

• Photosynthesis keeps the oxygen concentration in the atmosphere and water constant

  because oxygen is required by organisms for cell respiration and is released during photosynthesis
• Photosynthesis keeps the level of carbon dioxide in the atmosphere and water constant

  because carbon dioxide is released during cellular respiration and is absorbed during photosynthesis
• Photosynthesis provides food for heterotrophic organisms

  because fats and proteins are made from glucose and starch that are produced during photosynthesis
• Photosynthesis makes chemical energy available for cell functions

  as radiant energy is trapped and transformed into chemical energy during photosynthesis so it can be released during cellular respiration