C HAPTER 22: M ICROBIOLOGY OF THE
B UILT E NVIRONMENT
Test Bank for Brock Biology of Microorganism 16th Edition by Michael T.
Madigan
22.1 Multiple Choice Questions
1. Which statement BEST describes sewage and wastewater ?
A) Wastewater is a subset of sewage.
B) Sewage is a subset of wastewater.
C) Wastewater and sewage are virtuall y synonymous.
D) Wastewater and sewage are both subsets of all liquid effluents from
domestic and industrial
2. What chemical initiates the formation of acid mine drainage when pyrite
is not disposed of properl y?
A) O2
B) Fe2+
C) HS-
D) SO42-
3. What role does Acidithiobacillus ferrooxidans play in the copper leaching
process?
A) oxidation of sulfide to sulfate
B) reduction of oxidized iron (Fe3+) to reduced iron (Fe2+ )
C) oxidation of reduced iron (Fe2+) to oxidized iron (Fe3+)
D) reduction of sulfate to sulfide
4. The propagation cycle that occurs in acid mine drainage is caused by
A) reduction of Fe3+ by sulfuric acid.
, B) the oxidation of sulfide to sulfuric acid by microbial oxidation of
iron (Fe3+).
C) microbial sulfate reduction.
D) low pH and high ox ygen concentrations.
5. Bioremediation of uranium depends on
A) fermentation and oxidation.
B) methanogens.
C) metal-reducing bacteria.
D) sulfur-oxidizing bacteria.
6. Microbial immobilizat ion is the best strategy for uranium bioremediation,
because
A) uranium is difficult to chemicall y oxidize.
B) uranium contamination is widespread and thus difficult to physicall y
remove.
C) the by-products of chemical immobilization are toxic.
D) immobilization m ay onl y be temporary.
7. Which of the following can be completel y degraded to carbon dioxide by
microorganisms?
A) petroleum
B) uranium
C) chlorinated organics
D) petroleum and chlorinated organics
8. Which of the following hydrocarbon compounds are most recalcitran t to
degradation during bioremediation, meaning that they stay in the
environment longer than the others?
A) straight-chain hydrocarbons
B) methane
C) pol ycyclic hydrocarbons
B UILT E NVIRONMENT
Test Bank for Brock Biology of Microorganism 16th Edition by Michael T.
Madigan
22.1 Multiple Choice Questions
1. Which statement BEST describes sewage and wastewater ?
A) Wastewater is a subset of sewage.
B) Sewage is a subset of wastewater.
C) Wastewater and sewage are virtuall y synonymous.
D) Wastewater and sewage are both subsets of all liquid effluents from
domestic and industrial
2. What chemical initiates the formation of acid mine drainage when pyrite
is not disposed of properl y?
A) O2
B) Fe2+
C) HS-
D) SO42-
3. What role does Acidithiobacillus ferrooxidans play in the copper leaching
process?
A) oxidation of sulfide to sulfate
B) reduction of oxidized iron (Fe3+) to reduced iron (Fe2+ )
C) oxidation of reduced iron (Fe2+) to oxidized iron (Fe3+)
D) reduction of sulfate to sulfide
4. The propagation cycle that occurs in acid mine drainage is caused by
A) reduction of Fe3+ by sulfuric acid.
, B) the oxidation of sulfide to sulfuric acid by microbial oxidation of
iron (Fe3+).
C) microbial sulfate reduction.
D) low pH and high ox ygen concentrations.
5. Bioremediation of uranium depends on
A) fermentation and oxidation.
B) methanogens.
C) metal-reducing bacteria.
D) sulfur-oxidizing bacteria.
6. Microbial immobilizat ion is the best strategy for uranium bioremediation,
because
A) uranium is difficult to chemicall y oxidize.
B) uranium contamination is widespread and thus difficult to physicall y
remove.
C) the by-products of chemical immobilization are toxic.
D) immobilization m ay onl y be temporary.
7. Which of the following can be completel y degraded to carbon dioxide by
microorganisms?
A) petroleum
B) uranium
C) chlorinated organics
D) petroleum and chlorinated organics
8. Which of the following hydrocarbon compounds are most recalcitran t to
degradation during bioremediation, meaning that they stay in the
environment longer than the others?
A) straight-chain hydrocarbons
B) methane
C) pol ycyclic hydrocarbons
