Question

Group of bacteria used in biogas production is

• A. Methanogens
• B. Organotrophs
• C. Eubacteria
• D. Methanotrophs

Answer 1

The correct option is A Methanogens

Eubacteria

Eubacteria or bacteria are prokaryotes that are present in diverse locations and have diverse modes of nutrition.

Organotrophs

Organotrophs are a class of organisms that derive energy from organic compounds. These organisms obtain electrons from organic substrates during the process of respiration. Examples include humans, fungi etc.

Methanotrophs

Methanotrophs are aerobic prokaryotes that metabolise methane to obtain energy and carbon dioxide. Examples include $Methylobacter$, $Methylomonas.$

Methanogens

Methanogens are anaerobic bacteria that release methane from organic matter like cellulose. The bacteria used in biogas production are methanogens like Methanobacterium. It is present in cattle rumen and also in cattle dung.

Final answer: (d)