Intrinsic In Situ Bioremediation

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Questions and Answers

What is the main feature of Intrinsic in situ bioremediation?

  • Unassisted and passive remediation (correct)
  • Use of chemicals for treatment
  • Enhanced excavation process
  • Heavy human interference

What is another term for Intrinsic in situ bioremediation?

  • Passive bioremediation
  • Enhanced in situ bioremediation
  • Bioaugmentation
  • Monitored natural attenuation (correct)

Which method involves excavation or the addition of nutrients, air, and microbes?

  • Monitored natural attenuation
  • Enhanced in situ bioremediation (correct)
  • Bioaugmentation
  • Passive bioremediation

Which type of pollutants are often treated with bioaugmentation?

<p>Aromatic and chlorinated hydrocarbons (C)</p> Signup and view all the answers

What is the primary purpose of bioaugmentation?

<p>Improve the degradation process (C)</p> Signup and view all the answers

What is the term used when regular monitoring is required for a successful and sustainable process despite the absence of external forces?

<p>Monitored natural attenuation (A)</p> Signup and view all the answers

What is the primary reason heavy metals are considered notable contaminants?

<p>Their toxicity and nonbiodegradability in the environment (C)</p> Signup and view all the answers

Which of the following heavy metals is both a micronutrient and also toxic to humans?

<p>Copper (Cu) (A)</p> Signup and view all the answers

What is the main objective of bioremediation in environmental cleanup efforts?

<p>To degrade or detoxify contaminants to safe levels (D)</p> Signup and view all the answers

Why is water pollution a significant global concern according to the text?

<p>Involving contamination by organic compounds, inorganic compounds like heavy metals, and microorganisms (A)</p> Signup and view all the answers

What is the primary method used in bioremediation to remove or detoxify contaminants from the environment?

<p>Employing biomolecules or biomass to bind and concentrate selected ions or molecules (C)</p> Signup and view all the answers

Which type of microorganisms play a crucial role in altering the chemical properties of metals in bioremediation processes?

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

What are the main factors that can impact bioremediation processes according to the text?

<p>Availability of nutrients and toxic compounds (B)</p> Signup and view all the answers

Which enzymes play a critical role in the bioremediation process according to the text?

<p>Oxidoreductases and Transferases (B)</p> Signup and view all the answers

What are some common heavy metals associated with environmental contamination mentioned in the text?

<p>Lead (Pb), Cadmium (Cd), and Chromium (Cr) (C)</p> Signup and view all the answers

In the context of bioremediation, what is the primary function of microorganisms with a natural capacity to biosorb heavy metal ions?

<p>Adsorbing toxic heavy metal ions (B)</p> Signup and view all the answers

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