Question

What do we collectively call the biogas producing bacteria?

(a) Archaebacteria

(b) Cyanobacteria

(c) Eubacteria

(d) Methanogens

The question was posed to me during an interview for a job.

My enquiry is from Microbes in Production of Biogas topic in section Microbes in Human Welfare of Biology – Class 12

Answer 1

Correct answer is (d) Methanogens

To explain I would say: The biogas producing bacteria are collectively known as methanogens and one such common bacterium is Methanobacterium. These bacteria are commonly found in the anaerobic sludge during the sewage treatment and also in the rumen of cattle.