Biology · Kingdom Prokaryote
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A______ is an organism that makes ATP by aerobic respiration if oxygen is present, but is capable of switching to fermentation if oxygen is absent.
- A
Cellular anaerobe
- B
Respiratory anaerobe
- C
Obligate anaerobe
- D
Facultative anaerobe
Facultative anaerobes are versatile organisms that can produce ATP through aerobic respiration when oxygen is available, and switch to fermentation in its absence. This adaptability allows them to survive in varying oxygen conditions. In contrast, obligate anaerobes cannot tolerate oxygen and rely solely on anaerobic processes. The terms 'cellular anaerobe' and 'respiratory anaerobe' are not used in microbiology to classify organisms based on their oxygen requirements.
"Cellular anaerobe" is not a recognized term to describe an organism's respiratory capabilities.
"Respiratory anaerobe" is not a standard term used in microbiology to classify organisms based on their oxygen usage.
Obligate anaerobes can only survive in environments devoid of oxygen and cannot switch to aerobic respiration.
Facultative anaerobes can switch between aerobic respiration and fermentation based on the availability of oxygen, allowing them to thrive in diverse environments.
Tagged under Biology · Kingdom Prokaryote · 2019