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All living organisms constantly reusing the substances in the environment for their own metabolism and then the atoms of a biological community of plants and animals that live together are continually recycled in a food chain that is kept in balance through a series of chemical reactions that agree that healthy exchange. Modern chemistry has been able to identify many of these steps so that some foods can be directly synthesized in the laboratory and there are initiatives to make production processes more "green" (environmentally friendly) and 2011 has been proclaimed international year of chemistry. At the root of almost all food chains, there are the plants, in fact, animals can not utilize the nutrients present in inorganic compounds to be converted into organic compounds by bacteria and plants, for example through photosynthesis.

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Telephone: +39 338 1809310 Date: 17/01/2011 article n°: 1476 _____________________________________________________________________________________________________