An anaerobe is an organism that can survive and grow in the absence or near absence of free oxygen. Faculative anaerobes can live with or without free oxygen; obligate anaerobes are poisoned by it. Anaerobic bacteria can be a hazard in food canning because they can multiply in foods even under vacuum. By contrast, an aerobe is an organism that must have access to free oxygen in order to survive.
Related category• MICROBIOLOGY
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