Home Biology Biological Classification Skill Builder Which of the following statements about meth…
Biology Biological Classification Skill Builder Single Correct MCQ
Published on: August 13, 2026

Which of the following statements about methanogens is not correct?

A
They can be used to produce biogas
B
They are found in the rumen of cattle and their excreta
C
They grow aerobically and breakdown cellulose rich food
D
They produce methane gas

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The correct answer is:
C

because methanogens are obligate anaerobes, meaning they grow only in environments devoid of oxygen. While they do help break down cellulose-rich food in the rumen of cattle, they do so through anaerobic fermentation, not aerobic processes.

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