Limiting Factors of Photosynthesis

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  • Limiting Factors
    • Light Intensity
      • A lack of light would slow down the rate of photosynth as light provides energy needed for the reaction.
    • Temperature
      • If it is cold then enzymes will not work effectively and this will slow down the rate of the reaction.
    • Carbon Dioxide Concentration
      • If there is too little carbon dioxide then the rate will slow down.
        • Carbon Dioxide may be limited in an enclosed space
  • When doing photosynth experiments variables:
    • Independant variable is the one being tested.
    • Dependant variable is the one you measure.
      • In most cases this is the volume of oxygen.
    • Limiting Factors
      • Light Intensity
        • A lack of light would slow down the rate of photosynth as light provides energy needed for the reaction.
      • Temperature
        • If it is cold then enzymes will not work effectively and this will slow down the rate of the reaction.
      • Carbon Dioxide Concentration
        • If there is too little carbon dioxide then the rate will slow down.
          • Carbon Dioxide may be limited in an enclosed space
    • Control variable are light, temperature and the plant being used

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