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.

The NCERT line that answers it

Verbatim line

However, certain bacteria, which grow anaerobically on cellulosic material, produce large amount of methane along with $\text{CO}_2$ and $\text{H}_2$ .

Chapter: Microbes in Human Welfare
Section: 8.4 MICROBES IN PRODUCTION OF BIOGAS
Page: 6
Words matched: 49 of 52

The answer appears as a continuous sentence in NCERT. This is that sentence.

How this line gives the answer

0, emb=1.0, combined=1.0). Verified: high — The span explicitly states that methanogens 'grow anaerobically on cellulosic material,' which directly contradicts option C's claim that they 'grow aerobically and breakdown cellulose-rich food,' making it the incorrect statement.

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Question text is reproduced from the published NEET 2019 paper for study and commentary. NCERT text is quoted, not redistributed; textbooks remain at ncert.nic.in. Our mapping method, including its measured error rates, is published at /methodology.