Organisms that can use oxygen for metabolic reactions but can also function in an environment devoid of oxygen are termed _____.
A)aerobes
B)anaerobes
C)aerophiles
D)facultative anaerobes

Question

Quizplus · Accepted Answer

Facultative anaerobes are able to switch between aerobic metabolism (using oxygen) and anaerobic metabolism (not using oxygen). This ability allows them to survive in both oxygen-rich and oxygen-poor environments. Aerobes require oxygen for metabolic reactions, anaerobes cannot tolerate oxygen, and aerophiles require oxygen to survive.

Organisms That Can Use Oxygen for Metabolic Reactions but Can