Metal-Microbe Interactions in Bioremediation and Mining
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Questions and Answers

What role do iron-oxidising bacteria play in the mining of copper?

  • Facilitating acid biomineralisation of copper ores
  • Assisting in the leaching of copper sulfide minerals (correct)
  • Participating in the reduction of copper ions
  • Promoting biosorption of copper ions

Which bacterium is involved in the bioremediation process of wastewater containing uranium?

  • Desulfovibrio desulfuricans (correct)
  • Rhodococcus equi
  • Acidithiobacillus ferrooxidans
  • Pseudomonas aeruginosa

What is the enzymatic agent used by Desulfovibrio desulfuricans to treat water containing U(VI)?

  • Catechol Dioxygenase
  • Cytochrome c3 (correct)
  • Monooxygenase
  • Epoxide Diol

What is the source of carbon and energy for microorganisms degrading xenobiotics like PCBs?

<p>Benzoic acid (D)</p> Signup and view all the answers

Which process allows microorganisms to be adapted to catabolise xenobiotics with similar structures to natural compounds?

<p>Continuous culture (C)</p> Signup and view all the answers

What type of bond is particularly strong in the context of degradation of fluoroacetate?

<p>C-F bond (A)</p> Signup and view all the answers

Which bacteria has been genetically modified to protect sheep from fluoroacetate poisoning?

<p>Butyrovibrio fibrisolvens (A)</p> Signup and view all the answers

Which enzyme is involved in the degradation of RDX by Rhodococcus rhodochrous 11Y?

<p>Oxygenase (D)</p> Signup and view all the answers

What is the key factor that allows Diennococcus radiodurans to resist high doses of radiation?

<p>Multiple copies of genome (B)</p> Signup and view all the answers

What is the purpose of adding inorganic nutrients to oil spills to encourage bioremediation?

<p>To activate hydrocarbon chains (D)</p> Signup and view all the answers

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