A facultative anaerobic organism is an organism, usually a bacterium, that makes ATP by aerobic respiration if oxygen is present but is also capable of switching to fermentation under anaerobic conditions.

Some examples of Facultative anaerobic bacteria are the Staphlococci (Gram positive), Corynebacterium (Gram positive), and Listeria (Gram positive).

See also

• Aerobic respiration
• Anaerobic respiration

External links

• Facultative Anaerobic Bacteria
• Obligate Anaerobic Bacteria
• Anaerobic Bacteria and Anaerobic Bacteria in the decomposition (stabilization) of organic matter.

Cellular respiration

Anaerobio facultativo | Facultatief anaeroob