Translations:Metabolism/44/en

In photosynthetic prokaryotes the mechanisms of carbon fixation are more diverse. Here, carbon dioxide can be fixed by the Calvin – Benson cycle, a reversed citric acid cycle, or the carboxylation of acetyl-CoA. Prokaryotic chemoautotrophs also fix CO₂ through the Calvin–Benson cycle, but use energy from inorganic compounds to drive the reaction.