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  • Photosynthesis
    • Photosynthesis is the chemical change which happens in the leaves of green plants.
    • It is the first step towards making food
      • During this reaction, carbon dioxide and water are converted into glucose and oxygen.
        • The reaction requires energy in the form of sunlight, and chlorophyll must also be present.
          • Plants are produces, they produce their own food
            • Plants produce their food via photosynthesis
    • Photo of photosynethesis
    • Needs for photosynthesis to occur;
      • Chlorophyll (not used up)
      • CO2 (from the air)
      • Water (from the soil)
      • Sunlight energy (any light except green) (not used up)
    • What photosynthesis produces;
      • Glucose
      • Oxygen (waste product)
    • Video about it
    • Factors affecting photosynthesis
      • Light level
        • Without enough light, a plant cannot photosynthesis very fast, even is there is plenty of water and carbon dioxide. Increasing the light intensity will make photosynthesis faster.
      • Carbon dioxide level
        • Photosynthesis can be limited by the level of carbon dioxide. Even if there is planty of light a plant cannot photosynthesise if it has run out of carbon dixoide
      • Temperature
        • If it gets too cold the rate of photosynthesis will slow right down. If it gets too hot then plants cease to be able to photosynethesise.

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