A common bacterium among the methanogens producing biogas from cattle …

Question

A common bacterium among the methanogens producing biogas from cattle dung is

Accepted Answer

A. {'text': 'Methanobacterium', 'label': 'A'}

1. Methanogens are anaerobic bacteria that generate methane from cellulose.
2. NCERT names Methanobacterium as one such common bacterium.
3. Methanobacterium is common in the anaerobic sludge of sewage treatment and cattle rumen.
4. Cattle dung is rich in these bacteria, hence gobar gas.
_Source: NCERT Class 12 Biology, Ch 8 "Microbes in Human Welfare", §8.4_

Answer

{'text': 'Lactobacillus lactis', 'label': 'B'}

Answer

{'text': 'Escherichia coli', 'label': 'C'}

Answer

{'text': 'Streptococcus', 'label': 'D'}