AIIMS 2018 Botany Methanogens MCQ Question

Methanobacterium are anaerobic archaea that utilize carbon compounds, such as cellulose, through a process called methanogenesis, resulting in the production of methane (CH₄) and carbon dioxide (CO₂) as byproducts. This unique metabolic pathway occurs in environments devoid of oxygen, such as in the guts of ruminants or in wetlands. Other options are not provided, but typically incorrect choices might include organisms that do not produce methane or those that require aerobic conditions, which are not applicable to Methanobacterium. Understanding the anaerobic nature of methanogenesis is crucial for grasping the ecological role of these microorganisms in carbon cycling.