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Classification of bacteria based on their energy and nutrient sources
Description
Heterotroph
Photoheterotroph
chemolithoheterotroph
C-source
Energy source
Preformed organic
molecules e.g. sugars
Preformed organic
molecules e.g. sugars
Sunlight
chemoorganoheterotroph Preformed organic
molecules e.g. sugars
Autotroph
(lithotroph)
Photoautotroph
Carbon dioxide
Chemoautotroph
Carbon dioxide
Example of microbial
group
Purple non-sulfur
bacteria
Oxidation of
inorganic
compounds
e.g. H2S
Oxidation of
organic
compounds
Sunlight
Oxidation of
inorganic
compounds
methanogens
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