An organism that can use gaseous oxygen in metabolism and has the enzymes to process toxic oxygen products is a(n)
A)aerobe.
B)obligate aerobe.
C)facultative anaerobe.
D)microaerophile.
E)obligate anaerobe.

Question

Quizplus · Accepted Answer

An organism that can use gaseous oxygen in metabolism and has the enzymes to process toxic oxygen products is an aerobe. Obligate aerobes require oxygen for metabolism, whereas facultative anaerobes can switch to other metabolic pathways in the absence of oxygen. Microaerophiles require low levels of oxygen, and obligate anaerobes cannot tolerate oxygen at all.

An Organism That Can Use Gaseous Oxygen in Metabolism and Has