Rate of photosynthesis.

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Rate of photosynthesis

Results

The temperature of the water stayed a constant of 20 degrees throughout the experiment.

Analysis

The graphs that I have drawn from my results confirm my prediction that as light intensity increases, so does the rate of photosynthesis. All of my results fall into this pattern. This is because the energy of the light is used to drive the reaction and obviously the closer the light is, the more energy given to the plant. Also the light would reach a larger surface area of the plant as it is more focused.  

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        I can also see from my results that after a certain light intensity, the graph begins to curve and level off, which shows that the plant can only absorb so much light energy and then any increase after this point does not affect the reaction. Therefore light stops being a limiting factor to the rate of photosynthesis. This is because for water and carbon dioxide to react and for photosynthesis to occur, chlorophyll is needed. The light travels through the transparent epidermal cells to a palisade cell to Chloroplast. Chloroplast contains chlorphyll, which absorbs the light. The light and ...

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