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Investigate how light affects the rate of photosynthesis.
Member rating: No Rating | Words: | Submitted: Mon Mar 22 2004
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Pondweed Investigation Aim To investigate how light affects the rate of photosynthesis. Prediction I predict that the closer the lamp is to the pondweed the faster the rate of photosynthesis, the further away the lamp gets the slower the rate of reaction. I predict this as photosynthesis happens mainly during the daytime where there is strong light; photosynthesis slows down/stops at night because there is no main light source. For my experiment I predict that more oxygen bubbles will occur as the lamp is closer to the pondweed. This is because the more light there is, the more excited chlorophyll there will be photosynthesising producing O2 bubbles; therefore more photosynthesis happens the more oxygen bubbles will be released, so I will be able to see more O2 bubbles. Equation Carbon dioxide + water - light & chlorophyll sugar + oxygen 6 CO2 + 6H2O - light & chlorophyll C6H12O6 + 6O2 Equipment * Pondweed * Stopwatch *...
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