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Photosynthesis GCSE Coursework Aim: To investigate how much light intensity affects the rate of reaction. Reaction: photosynthesis of Canadian pondweed (Elodea) Introduction- what is photosynthesis? The definition of photosynthesis is when plants process water and carbon dioxide to produce glucose by the process of photosynthesis. Photosynthesis is the method that plants use to make their own food. When photosynthesis takes place, plants use the suns energy to combine carbon dioxide from the air with water from the soil to create glucose (a carbohydrate). Carbon dioxide+ water (+light energy)> glucose + oxygen (Simple raw materials) (Carbohydrates food) (By-product) Mostly photosynthesis takes place in leaves, as leaves are photosynthetic organs they make food. Chloroplasts in the leaf cells has got green pigment chlorophyll, it absorbs light energy, making it available for photosynthesis. Plants use glucose to provide energy and raw materials. Glucose can be built into starch, which is a food store, or into cellulose for cell walls....

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