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Metabolism

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 Metabolism (from Greek : μεταβολή metabolē, "change") is the set of life-sustaining chemical transformations  within the cells of organisms. The three main purposes of metabolism are the conversion of food/fuel to energy to run cellular processes, the conversion of food/fuel to building blocks for proteins,  lipids, nucleic acids, and some  carbohydrates, and the elimination of  nitrogenous wastes

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Types of metabolism 1.Photoorganoheterotroph 2.Photoorganoautotroph 3.Photolithoheterotroph 4.Photolithoautotroph 5.Chemoorganoheterotroph 6.Chemoorganoautotroph 7.Chemolithoheterotroph 8.Chemolithoautotroph

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Photoheterotrophs Phototrophic organisms using organic compounds as donors of electrons and carbon sources. To photogenerotro phs are the phototrophic bacteria Chloroflexus.

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Photoorganoautotroph s Animals, according to this classification, are chemoorganotrophs; i.e., they utilize chemical compounds to supply energy and organic compounds as electron donors. purple bacteria

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Photolithoheterotroph Some cyanobacteria, purple and green bacteria, as well as heliobacteria Green bacteria

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Photolithoautotroph Higher plants, Algae, Cyanobacteria, Purple sulfur bacteria, Green bacteria.

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Chemoorganoheterotr oph Animals, Mushrooms, Most microorganisms are decomposers.

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Chemoorganoautotrop h Oxidation of hard-to-reach materials, for example facultative methylotrophs, oxidizing formic acid.

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Chemolithoheterotrop h Methane-forming Archaea, Hydrogen Bacteria.

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Chemolithoautotroph Iron bacteria, Hydrogen bacteria, Nitrifying bacteria, Serobacteria

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