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An Investigation to find out how Light Intensity affects Photosynthesis in Pondweed. The investigation is intended to demonstrate the way in which photosynthesis in pondweed is affected by light intensity. I have read about photosynthesis in Illustrated Biology by B.S. Becket, as well as Biology, a fictional approach by M.B.V. Roberts, and this is my summery: Most plants are neither carnivores nor herbivores, they do not feed on complex organic molecules and can instead synthesis organic compounds from inorganic raw materials, this is called Autotrophic Nutrition. There are two different types of Autotrophic Nutrition: Chemosynthesis and Photosynthesis. The method used by all green plants is Photosynthesis. Photosynthesis can be summarised by: Light energy Chlorophyll 6CO2 + 6H2O ? C6H12O6 + 6O2 Carbon Dioxide Water Glucose Oxygen Energy from sunlight is trapped by chlorophyll contained in chloroplasts found mostly in the leaves of plants, and is used to combine carbon dioxide with water. Carbon dioxide is absorbed through pores called stomata which are usually located on the...

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