Question 1

Which is NOT an indigenous microbe used for bioremediation?

Accepted Answer

A)   Piscirikettsis salmonis
B)   Pseudomonas aeruginosa
C)   Phanerochaete sordida
D)   E. coli
E)   Deinococcus radiodurans

Question 2

Aerobic degradation (pumping air or hydrogen peroxide into the contaminated site)  is also known as ________.

Accepted Answer

A)   bioprocessing
B)   biostimulation
C)   bioventing
D)   composting
E)   landfarming

Question 3

Which bioremediation approach involves mixing contaminated soil with water, carbon dioxide, and fertilizers in a bioreactor to stimulate biodegradation?

Accepted Answer

A)   Composting
B)   Biopile treatment
C)   In situ bioremediation
D)   In situ hybridization
E)   Slurry-phase bioremediation

Question 4

Bioremediation often requires the gain or loss of electrons as a mechanism to assist the process. Gain of electrons is known as ________.

Accepted Answer

A)   reduction
B)   bioprocessing
C)   oxidation
D)   carboxylation
E)   hydrolysis

Question 5

Compounds that cause cancer are called ________.

Accepted Answer

A)   mutagens
B)   carcinogens
C)   chemicals
D)   acids
E)   bases

Question 6

Spreading contaminated soil on a pad so that water and other compounds can leak out of the soil is known as ________.

Accepted Answer

A)   bioprocessing
B)   biostimulation
C)   bioventing
D)   composting
E)   landfarming

Question 7

Anaerobic bacteria often play important roles in bioremediation. Which of the following is NOT an electron acceptor used by anaerobes during biodegradation reactions?

Accepted Answer

A)   H2O
B)   CO2
C)   SO4-2
D)   NO3-
E)   Fe(III)

Question 8

Ananda Chakrabarty received the first U.S. patent for a GM organism. This organism was ________.

Accepted Answer

A)   a transgenic mouse expressing the growth hormone gene
B)   the GloFish
C)   Dolly the cloned sheep
D)   cloned E. coli
E)   Pseudomonas engineered to degrade petroleum

Question 9

The source of polyvinylchloride as a chemical pollutant is ________.

Accepted Answer

A)   wood preservative
B)   petroleum products
C)   pulp and paper bleaching
D)   rubber compounds
E)   plastic manufacturing

Question 10

What is phytoremediation and why is it used?

Accepted Answer

This is the use of plants to clean up co...

Question 11

The source of dioxin as a chemical pollutant is ________.

Accepted Answer

A)   wood preservative
B)   petroleum products
C)   pulp and paper bleaching
D)   rubber compounds
E)   plastic manufacturing

Question 12

Bioremediation often requires the gain or loss of electrons as a mechanism to assist the process. Loss of electrons is known as ________.

Accepted Answer

A)   reduction
B)   bioprocessing
C)   oxidation
D)   carboxylation
E)   hydrolysis

Question 13

Which of the following is an example of solid phase bioremediation?

Accepted Answer

A)   Composting
B)   Bioventing
C)   Slurry phase
D)   Phytoremediation
E)   All of the above A

Question 14

The source of cyanide as a chemical pollutant is ________.

Accepted Answer

A)   wood preservative
B)   petroleum products
C)   pulp and paper bleaching
D)   mining processes
E)   plastic manufacturing

Question 15

Which cleanup approach involves removing groundwater or soil from its natural setting to allow for bioremediation?

Accepted Answer

A)   In situ bioremediation
B)   EX situ bioremediation
C)   Phytoremediation
D)   Bioaugmentation
E)   None of these choices

Question 16

Which bacterium is capable of withstanding doses of radiation that are several times higher than human cells can tolerate?

Accepted Answer

A)   Staphylococcus aureus
B)   Saccharomyces cerevisiae
C)   Deinococcus radiodurans
D)   Escherichia coli
E)   Conus magus C

Question 17

Which bioremediation approach involves using plants to degrade pollutants?

Accepted Answer

A)   Composting
B)   Land farming
C)   Biopile
D)   Phytoremediation
E)   None of these choices

Question 18

Bioaugmentation is a process that involves ________.

Accepted Answer

A)   using plants for bioremediation
B)   ex situ bioremediation
C)   adding microbes to a cleanup site
D)   bioventing
E)   sludge removal C

Question 19

During which stage of wastewater treatment is the primary effluent aerated to allow for biodegradation by aerobic microbes?

Accepted Answer

A)   Primary treatment
B)   Secondary treatment
C)   Disinfection
D)   Sludge digestion
E)   Sedimentation

Question 20

Define oxidation and reduction reactions and explain why they are the key components to cleaning up the environment.

Accepted Answer

The gain and loss of electrons can help ...

Exam 9: Bioremediation

Which is NOT an indigenous microbe used for bioremediation?

Correct AnswerverifiedShow Answer

Aerobic degradation (pumping air or hydrogen peroxide into the contaminated site) is also known as ________.

Correct AnswerverifiedShow Answer

Which bioremediation approach involves mixing contaminated soil with water, carbon dioxide, and fertilizers in a bioreactor to stimulate biodegradation?

Correct AnswerverifiedShow Answer

Bioremediation often requires the gain or loss of electrons as a mechanism to assist the process. Gain of electrons is known as ________.

Correct AnswerverifiedShow Answer

Compounds that cause cancer are called ________.

Correct AnswerverifiedShow Answer

Spreading contaminated soil on a pad so that water and other compounds can leak out of the soil is known as ________.

Correct AnswerverifiedShow Answer

Anaerobic bacteria often play important roles in bioremediation. Which of the following is NOT an electron acceptor used by anaerobes during biodegradation reactions?

Correct AnswerverifiedShow Answer

Ananda Chakrabarty received the first U.S. patent for a GM organism. This organism was ________.

Correct AnswerverifiedShow Answer

The source of polyvinylchloride as a chemical pollutant is ________.

Correct AnswerverifiedShow Answer

What is phytoremediation and why is it used?

Correct AnswerverifiedThis is the use of plants to clean up co...View AnswerShow Answer

The source of dioxin as a chemical pollutant is ________.

Correct AnswerverifiedShow Answer

Bioremediation often requires the gain or loss of electrons as a mechanism to assist the process. Loss of electrons is known as ________.

Correct AnswerverifiedShow Answer

Which of the following is an example of solid phase bioremediation?

Correct AnswerverifiedA

The source of cyanide as a chemical pollutant is ________.

Correct AnswerverifiedShow Answer

Which cleanup approach involves removing groundwater or soil from its natural setting to allow for bioremediation?

Correct AnswerverifiedShow Answer

Which bacterium is capable of withstanding doses of radiation that are several times higher than human cells can tolerate?

Correct AnswerverifiedC

Which bioremediation approach involves using plants to degrade pollutants?

Correct AnswerverifiedShow Answer

Bioaugmentation is a process that involves ________.

Correct AnswerverifiedC

During which stage of wastewater treatment is the primary effluent aerated to allow for biodegradation by aerobic microbes?

Correct AnswerverifiedShow Answer

Define oxidation and reduction reactions and explain why they are the key components to cleaning up the environment.

Correct AnswerverifiedThe gain and loss of electrons can help ...View AnswerShow Answer

Correct Answer
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This is the use of plants to clean up co...
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A

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C

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The gain and loss of electrons can help ...
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