The rate of photosynthesis - Light

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  • Light transfers the energy needed for photosynthesis.
  • As the light level is raised, the rate of photosynthesis increases steadily - but only up to a certain point.
  • Beyond that, it won't make any difference - it'll be either the temperature or the carbon dioxide level which is the limiting factor.
  • In the lab you can investigate light intensity by moving a lamp closer to or further away from your plant.
  • But if you just plot the rate

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