The Reduction of U⁶⁺ to U⁴⁺ by Geobacter Metallireducens Is

Question

The reduction of U⁶⁺ to U⁴⁺ by Geobacter metallireducens is an example of
A) assimilatory metal reduction.
B) fermentation.
C) dissimilatory metal reduction.
D) organotrophy.
E) lithotrophy.

Accepted Answer

The reduction of U⁶⁺ to U⁴⁺ by Geobacter metallireducens is an example of dissimilatory metal reduction, which is a form of anaerobic respiration. It involves the use of metal ions as electron acceptors instead of oxygen, resulting in the conversion of organic matter to energy and the reduction of metal ions to their lower oxidation states.