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Home Q & A Board Biology-Related Homework Help Biochemistry
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colleen colleen
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12 years ago
Explain how cell aggregates in marine sediments oxidize methane under anoxic conditions. Also mention what qualitative level of energy this process yields.
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12 years ago
Methane can become oxidized in the absence of oxygen when it is coupled to the reduction of another compound, such as sulfate (SO42-). A consortium containing an anoxic methanotrophic archaeon can first oxidize methane, transfer the electrons to a sulfate-reducing bacterium with an organic intermediate, and the bacterium will create a reduced product (H2S). This anoxic process of oxidizing methane yields relatively low levels of free energy.
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