The reduction of uranium to uranite by Geobacter metallireducens is an example of:
A) assimilatory metal reduction
B) fermentation
C) dissimilatory metal reduction
D) organotrophy
E) lithotrophy

Question

Quizplus · Accepted Answer

The reduction of uranium to uranite by Geobacter metallireducens is an example of dissimilatory metal reduction, where metals serve as terminal electron acceptors in the respiratory chain, resulting in the generation of energy. This process is different from assimilatory metal reduction where microbes incorporate the metals into their own metabolism or use them for detoxification. The other options, fermentation, organotrophy, and lithotrophy, do not involve metal reduction as a means of energy generation.

The Reduction of Uranium to Uranite by Geobacter Metallireducens Is