Investigate a factor which may affect the rate of photosynthesis of Canadian pondweed.
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Biology Coursework - To investigate a factor which may affect the rate of photosynthesis of Canadian pondweed... Aim: I plan to investigate whether light intensity affects the rate of photosynthesis of a length of Canadian pondweed, or ELODEA. This plant is suitable because it naturally occurs in water, so placing it in water for a prolonged period of time would not disturb it. Light intensity is measured in arbitrary units, and is calculated by using the formula Intensity = distance(from lamp) -2 or Intensity = 1 ? distance (from lamp)2 As the distance from the lamp increases, so the intensity decreases - they are INVERSELY PROPORTIONAL. Photosynthesis is a chemical reaction in plants that converts carbon dioxide and water into glucose and oxygen via a substance called CHLOROPHYLL. This is a green-pigmented chemical that absorbs sunlight and uses the energy to split water, thereby giving off oxygen bubbles. This is the equation for the reaction: light 6CO2...


