Aerobic bacteria uses O2 like all the other cells, in resparation, aka. break down of glucose. Anaerobic bacteria, cannot stand oxygen, because it is like a poison to them, they can get all of their energy from chemicals, such as sulphuric acid, from underwater volcano vents
How bacteria grow both in presence and absence of oxygen ?
Different bacterias have different needs. Some types need oxygen, some need an anscence of oxygen.
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