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Investigating the affect light intensity has on photosynthesis
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Biology Coursework Investigating the affect light intensity has on photosynthesis Plan All living organisms need food. They need it as a source of raw materials to build new cells and tissues as they grow. They also need food as a source of energy. Food is a 'fuel', which drives essential living processes and brings about chemical changes. Animals take in food, digest it, and use the products to build their tissues or to produce energy, but plants, apart from a few insect-eating species, do not appear to take in food. This is because plants find food sources in water and the air. This is known as photosynthesis. Chlorophyll is a green substance found in the chloroplasts of plant cells. It absorbs sunlight and makes the energy from sunlight available for chemical reactions. Thus, chlorophyll converts light energy to chemical energy. Therefore photosynthesis is the building-up of food compounds from carbon dioxide and water...
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