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An investigation of the effects of the quantity of light on the rate of photosynthesis in Elodea
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Biology GCSE Coursework "An investigation of the effects of the quantity of light on the rate of photosynthesis in Elodea" Planning I am going to investigate the effect of the quantity of light on the rate at which a piece of Elodea photosynthesises. The term photosynthesis means making food in the light. It is the basis of all food chains and webs, because green plants are able to use sunlight as an energy source. Green plants are called primary producers, and the food they make from simple inorganic substances is passed through the eco system. Plants take in two raw materials, water from the soil, and CO2 from the air, and along with minerals, produce all the organic molecules they require. Plants are therefore said to be autotrophic (self-feeding), where as animals are heterotrophic (they eat food). Photosynthesis can be summarised by a simple equation: 6CO2(g) + 6H2O(l) ? C6H12O6(l) + 6O2 The glucose is...
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