(from the article `bacteria`) ...use photosynthesis to generate cellular energy in the form of adenosine triphosphate (ATP) from light energy. Chemotrophs obtain their energy from ...
An organism which obtains its energy from the oxidation of inorganic compounds. ... (09 Oct 1997) ... 
(ke″mo-lith´o-trōf) a chemolithotrophic organism.
An organism that uses an inorganic compound as energy source.Alternative name for a chemoautotroph.
Type: Term Pronunciation: kē′mō-lith′ō-trōf Synonyms: chemoautotroph
chemolithotrophic, chemolithotroph, chemolithotrophy A reference to organisms that obtain energy from oxidation/reduction reactions and use inorganic electron donors.