Bacteria Lacking Superoxide Dismutase Are

Question

Bacteria lacking superoxide dismutase are
A) Heterotrophs
B) Obligate anaerobes
C) Aerobes
D) Facultative anaerobes
E) Autotrophs

Accepted Answer

Superoxide dismutase, which is present in aerobes and facultative anaerobe organisms, protects them from the toxic $({O_2}^{\cdot-})$ radical. This enzyme is not present in obligate anaerobes.