An organism that grows at the top of a tube of thioglycolate broth medium is probably a(n):
A) strict aerobe
B) facultative anaerobe
C) aerotolerant anaerobe
D) microaerophile
E) strict anaerobe

Question

Quizplus · Accepted Answer

An organism that grows at the top of a tube of thioglycolate broth medium indicates that it is able to grow in the presence of oxygen and utilizes it as a terminal electron acceptor for energy production. This is characteristic of strict aerobes, which require oxygen for growth.

An Organism That Grows at the Top of a Tube