<P> In biochemistry , chemosynthesis is the biological conversion of one or more carbon - containing molecules ( usually carbon dioxide or methane ) and nutrients into organic matter using the oxidation of inorganic compounds ( e.g. , hydrogen gas , hydrogen sulfide ) or methane as a source of energy , rather than sunlight , as in photosynthesis . Chemoautotrophs , organisms that obtain carbon through chemosynthesis , are phylogenetically diverse , but also groups that include conspicuous or biogeochemically - important taxa include the sulfur - oxidizing gamma and epsilon proteobacteria , the Aquificae , the methanogenic archaea and the neutrophilic iron - oxidizing bacteria . </P>
<P> In biochemistry , chemosynthesis is the biological conversion of one or more carbon - containing molecules ( usually carbon dioxide or methane ) and nutrients into organic matter using the oxidation of inorganic compounds ( e.g. , hydrogen gas , hydrogen sulfide ) or methane as a source of energy , rather than sunlight , as in photosynthesis . Chemoautotrophs , organisms that obtain carbon through chemosynthesis , are phylogenetically diverse , but also groups that include conspicuous or biogeochemically - important taxa include the sulfur - oxidizing gamma and epsilon proteobacteria , the Aquificae , the methanogenic archaea and the neutrophilic iron - oxidizing bacteria . </P>
what form of energy is used for chemosynthesis
what form of energy is used for chemosynthesis
the oxidation of inorganic compounds ( e.g. , hydrogen gas , hydrogen sulfide ) or methane
the oxidation of inorganic compounds ( e.g. , hydrogen gas , hydrogen sulfide ) or methane