Microbial immobilization is the best strategy for uranium bioremediation, because
A) uranium is difficult to chemically oxidize.
B) uranium contamination is widespread and thus difficult to physically remove.
C) the by-products of chemical immobilization are toxic.
D) immobilization may only be temporary.

Question

Quizplus · Accepted Answer

Uranium contamination is widespread and physically removing it would be difficult and costly. Therefore, microbial immobilization is the most effective strategy. The microbial cells immobilize the uranium by adsorbing it onto their cell surface or by precipitating it inside their cells, which can prevent its release into the environment. Chemical immobilization methods can also be toxic or produce toxic by-products, whereas microbial immobilization is a natural and sustainable approach.

Microbial Immobilization Is the Best Strategy for Uranium Bioremediation, Because