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Microbiology
Gram-negative bacteria
| Question | Answer |
|---|---|
| Photosynthetic, oxygenic; uses H2O as electron donor for CO2 reaction | Cyanobacteria (Anabaena, Gloecapsa) |
| Photosynthetic, but can fix nitrogen in heterocysts | Cyanobacteria (Anabaena, Gloecapsa) |
| Photosynthetic, anoxygenic; green sulfur bacteria; uses H2S for CO2 reduction | Chlorobi (Chlorobium) |
| Green nonsulfur bacteria; grow chemoheterotrophically, anoxygenic; electron donor - organic compounds | Chloroflexi (chloroflexus) |
| Purple nonsulfer bacteria, grow chemoheterotrophically, electron donor - organic compounds, anoxygenic | Proteobacteria (rhodospirillum) |
| Purple sulfur bacteria, uses H2S as electron donor, anoxygenic | Proteobacteria (Chromatium) |