NEET 2019 Odisha · BiologyPrevious Year Question
Which of the following statements about methanogens is not correct?
Answer: (C) They grow aerobically and breakdown cellulose-rich food.. Answer: (3) They grow aerobically and breakdown cellulose-rich food.
- 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.
Correct Answer
(C) They grow aerobically and breakdown cellulose-rich food.
Solution & Explanation
Answer: (3) They grow aerobically and breakdown cellulose-rich food. Solution: Methanogens grow anaerobically on cellulosic material, not aerobically, so statement (3) is the incorrect one. They produce methane (biogas), are found in the rumen of cattle and in their dung, and are used for biogas generation. NCERT Reference: Ch 8, p.155, line 30 — "which grow anaerobically on cellulosic material, produce large amount"
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