IB Biology SL B4.2.7 Diversity in Archaea Questions

Trace how bacteria break down biomass and methanogenic Archaea produce methane in anaerobic fermenters, then connect this process to ecosystem carbon cycling in IB Biology SL B4.2.7.

Exam points

Explain biogas production from biomass by bacteria and methanogenic Archaea in anaerobic fermenters.
Identify methanogenic Archaea and the anaerobic habitats or conditions they require.
Outline how methanogens increase methane in biogas and the atmosphere.

[Maximum number: 1]

Which organisms produce methane in anaerobic environments such as waterlogged soils?

Archaea

Fungi

Eukaryotes

Eubacteria

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IB Biology SL B4.2.7 Diversity in Archaea Questions question 1