4 Factors Affecting Photosynthesis - GCSE Biology Higher AQA

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  • 4 Factors Affecting Photosynthesis
    • Light Intensity
      • Initially, increasing light intensity increases the rate of photosynthesis because more energy us provided.
      • But above a certain threshold, further increases in light intensity do not increase the rate of photosynthesis as light intensity is no longer the limiting factor.
    • Chlorophyll Concentration
      • High chlorophyll concentration gives a high rate of photosynthesis.
    • Temperature
      • Initially, increasing the temperature increases the rate of photosynthesis because more energy is provided.
      • But above 45 degrees celsius, the enzymes involved in the reaction begin to denature.
    • Carbon Dioxide Concentration
      • Initially, increasing light intensity increases the rate of photosynthesis because more energy is provided.
      • Above a certain threshold, further increases in carbon dioxide concentration do not increase the rate of photosynthesis as it is no longer the limiting factor.

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