The methanogens
A) are part of the domain Archaea AND appear only in aerobic environments.
B) oxidize hydrogen gas to produce methane AND appear only in aerobic environments.
C) use oxygen as a terminal electron acceptor AND appear only in aerobic environments.
D) use oxygen as a terminal electron acceptor AND oxidize hydrogen gas to produce methane.
E) are part of the domain Archaea AND oxidize hydrogen gas to produce methane.

Question

The methanogens
A) are part of the domain Archaea AND appear only in aerobic environments.
B) oxidize hydrogen gas to produce methane AND appear only in aerobic environments.
C) use oxygen as a terminal electron acceptor AND appear only in aerobic environments.
D) use oxygen as a terminal electron acceptor AND oxidize hydrogen gas to produce methane.
E) are part of the domain Archaea AND oxidize hydrogen gas to produce methane.

Quizplus · Accepted Answer

Methanogens are part of the domain Archaea and are known for their ability to produce methane by oxidizing hydrogen gas. They are also anaerobic, meaning they do not require oxygen to survive. Therefore, options A, B, C, and D are incorrect.

The Methanogens