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Investigating the effects different factors have on the rate of photosynthesis in pondweed.
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Investigating the effects different factors have on the rate of photosynthesis in pondweed. By: Eilísh Rafferty. 12DG Mrs.Cullen Q) A pupil in a biology class observed that there were large numbers of bubbles around the pondweed in the fish tank on sunny days; however, on the dark mornings fewer bubbles were observed. Devise an investigation to explain this observation. Problem. The problem I intend to investigate is why there were large numbers of bubbles around the pondweed on sunny days and on the dark mornings there were fewer bubbles. These bubbles are oxygen gas and they are present as oxygen is a product of photosynthesis. Photosynthesis is the process by which plants make food, it is a chemical reaction between carbon dioxide and water. Sunlight provides the energy for this process to occur. Chlorophyll is a green pigment present in chloroplasts which enables plants to absorb energy. The equation for photosynthesis is: . Carbon dioxide...
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