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The effect of varying light intensity on the rate of Photosynthesis of the aquatic plant Elodea.
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The effect of varying light intensity on the rate of Photosynthesis of the aquatic plant Elodea Mubasher 10B Data Analysis Distance of lamp Length of bubble after 5 minutes (mm) Average length Light Intensity from plant (cm) of bubble (Lux) 5 29 49 52 56 56 59 50.17 4000 10 12 21 22 27 26 30 23 1000 15 9 9 10 12 14 13 11.17 444.4 30 2 3 3 2 5 4 3.17 111.1 50 1 2 2 1 1 2 1.50 40 Light intensity workings: 1/distance2 * 100,000 = 1/52 * 100,000 = 1/25 * 100,000 = 4000 For all the rest, workings are the same. Graph See other sheet Conclusion The pattern shown on the above graph shows that as you increase the light intensity the rate of photosynthesis increases at a decreasing rate. Sunlight + Chlorophyll Carbon dioxide + Water Oxygen + Glucose + Energy These results tell me that an increase in light intensity does increase the rate of photosynthesis. The gradual decrease in the rate of photosynthesis (the straightening of the curve) can be linked to the other factors limiting the rate of photosynthesis. As light intensity increases, the rate is...
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