123 School Work

Factors Affecting the rate of photosynthesis in elodea

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  Factors Affecting The Rate of Photosynthesis in Elodea
  
  Introduction
  
  I have investigated the rate of photosynthesis in Elodea and how one of the key factors, light, affects the rate of photosynthesis. To do this I carried out an experiment using 6 different voltages of a bulb, meaning 6 different brightness of light, three times each.
  
  Prediction
  
  To make a prediction, first I have to find out the key factors and how they affect the rate of photosynthesis in the Elodea:
  
  Carbon Dioxide (CO ) Water + Carbon Dioxide Carbonic Acid Hydrogen Carbonate
  Hydrogen Carbonate is required for the process photosynthesis therefore the rate of reaction will be quicker if more is added. And Sodium Bicarbonate, which will be used in this experiment, can be added to speed up the rate of photosynthesis but the sodium kills the plant, as it is freshwater. This factor can be measured.
  
  Temperature Enzymes in the plant work better at a higher temperature but if the temperature is too high the enzymes in the plant will denature and the plant will die. Therefore if the temperature is high but not too high the rate of photosynthesis will be quicker. This factor can also be measured
  
  Light Sunlight is required for photosynthesis to take place. We will be using artificial light and at different voltages. The more light means the quicker the rate of reaction will be therefore the higher the voltage the more light speeding up the reaction rate...