Question 1

In a large body of standing water, which area exists between the hypolimnion and the epilimnion?

Accepted Answer

A)  thermocline
B)  photic
C)  limnetic
D)  littoral
E)  profundalF) A) and B)
G) A) and C)

Question 2

The sediment in a lake, composed of organic debris and mud, is termed the

Accepted Answer

A)  photic zone.
B)  benthic zone.
C)  profundal zone.
D)  littoral zone.
E)  limnetic zone.F) A) and B)
G) B) and E)

Question 3

Differentiate between the following terms and provide an example for each: mutualism, communalism, synergism, parasitism.

Accepted Answer

Mutualism is a type of symbiotic relatio...

Question 4

The slowly decaying organic litter from plant and animal tissues that is found in the soil is called _____.

Accepted Answer

The answer of The slowly decaying organic litter from plant...

Question 5

Which of the following are roles played by microbes in aquatic ecosystems?

Accepted Answer

A)  producers
B)  primary consumers
C)  decomposers
D)  mineralizers
E)  All of these choices are correct.F) C) and E)
G) B) and D)

Question 6

Potable water is

Accepted Answer

A)  contaminated.
B)  polluted.
C)  safe to drink.
D)  foul testing.E) None of the above
F) B) and D)

Question 7

The oxidation of ammonia (NH4+)  to nitrate (NO3 )  is called

Accepted Answer

A)  ammonification.
B)  nitrogen fixation.
C)  photosynthesis.
D)  nitrification.
E)  denitrification.F) None of the above
G) A) and B)

Question 8

Mycorrhizae are the mutualistic partnership between fungi and the roots of certain plants.

Accepted Answer

A) True 
 B)False

Question 9

Which organism is a nitrogen-fixing symbiont of legumes?

Accepted Answer

A)  Rhizobium
B)  Nitrobacter
C)  Pseudomonas
D)  Nostoc
E)  AzotobacterF) All of the above
G) B) and E)

Question 10

Consider a pond on your college campus.All of the organisms that live in the pond, including bacteria, protozoa, algae, plants and animals, represent a/an

Accepted Answer

A)  ecosystem.
B)  population.
C)  niche.
D)  community.
E)  habitat.F) A) and B)
G) A) and C)

Question 11

What is the source of CO2 released into the atmosphere?

Accepted Answer

A)  respiration
B)  anaerobic microbial activity
C)  fuel combustion
D)  volcanic activity
E)  All of these choices are correct.F) C) and E)
G) A) and B)

Question 12

Which of the following are sources of greenhouse gases?

Accepted Answer

A)  gastrointestinal tract of ruminants
B)  combustion of fossil fuels
C)  burning forests to clear agricultural land
D)  decaying vegetation in swamps
E)  All of these choices are correct.F) D) and E)
G) B) and D)

Question 13

An _____ is a region where the river meets the sea.

Accepted Answer

The answer of An _____ is a region where the...

Question 14

The energy of photons is converted into chemical energy during

Accepted Answer

A)  ammonification.
B)  nitrogen fixation.
C)  photosynthesis.
D)  nitrification.
E)  denitrification.F) A) and B)
G) C) and E)

Question 15

Discuss and give several examples of the use of microbes in bioremediation.

Accepted Answer

Bioremediation is the use of microorgani...

Question 16

The conversion of nitrate (NO3 )  to nitrogen gas (N2)  is called

Accepted Answer

A)  ammonification.
B)  nitrogen fixation.
C)  photosynthesis.
D)  nitrification.
E)  denitrification.F) A) and B)
G) A) and C)

Question 17

In a synergistic relationship, the action of one microbe favorably affects another, but the first microbe receives no benefit.

Accepted Answer

A) True 
 B)False

Question 18

Nutrient deficient ecosystems are called ___________.

Accepted Answer

The answer of Nutrient deficient ecosystems are called ___________....

Question 19

The science called microbial _____ studies interactions between microbes and their environment and how those interactions affect the Earth.

Accepted Answer

The answer of The science called microbial _____ studies interactions...

Question 20

Thiobacillus thiooxidans is found in an environmental sample.Which of the following should then apply to this sample?

Accepted Answer

A)  The sample contains lithotrophs.
B)  The sample is very acidic.
C)  The sample contains microbes that oxidize sulfur to sulfates.
D)  All of these choices are correct.E) C) and D)
F) A) and B)

Exam 26: Environmental Microbiology

Which organism is a nitrogen-fixing symbiont of legumes?

Correct AnswerverifiedShow Answer

In a large body of standing water, which area exists between the hypolimnion and the epilimnion?

Correct AnswerverifiedShow Answer

An _____ is a region where the river meets the sea.

Correct AnswerverifiedShow Answer

The science called microbial _____ studies interactions between microbes and their environment and how those interactions affect the Earth.

Correct AnswerverifiedShow Answer

The oxidation of ammonia (NH4+) to nitrate (NO3 ) is called

Correct AnswerverifiedShow Answer

The sediment in a lake, composed of organic debris and mud, is termed the

Correct AnswerverifiedShow Answer

The conversion of nitrate (NO3 ) to nitrogen gas (N2) is called

Correct AnswerverifiedShow Answer

Which of the following are sources of greenhouse gases?

Correct AnswerverifiedShow Answer

Differentiate between the following terms and provide an example for each: mutualism, communalism, synergism, parasitism.

Correct AnswerAnswered by ExamLex AIMutualism is a type of symbiotic relatio...View AnswerShow Answer

What is the source of CO2 released into the atmosphere?

Correct AnswerverifiedShow Answer

Thiobacillus thiooxidans is found in an environmental sample.Which of the following should then apply to this sample?

Correct AnswerverifiedShow Answer

Mycorrhizae are the mutualistic partnership between fungi and the roots of certain plants.

Correct AnswerverifiedShow Answer

Nutrient deficient ecosystems are called ___________.

Correct AnswerverifiedShow Answer

Discuss and give several examples of the use of microbes in bioremediation.

Correct AnswerAnswered by ExamLex AIBioremediation is the use of microorgani...View AnswerShow Answer

In a synergistic relationship, the action of one microbe favorably affects another, but the first microbe receives no benefit.

Correct AnswerverifiedShow Answer

Consider a pond on your college campus.All of the organisms that live in the pond, including bacteria, protozoa, algae, plants and animals, represent a/an

Correct AnswerverifiedShow Answer

Potable water is

Correct AnswerverifiedShow Answer

The energy of photons is converted into chemical energy during

Correct AnswerverifiedShow Answer

Which of the following are roles played by microbes in aquatic ecosystems?

Correct AnswerverifiedShow Answer

The slowly decaying organic litter from plant and animal tissues that is found in the soil is called _____.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

The oxidation of ammonia (NH₄⁺) to nitrate (NO₃ ) is called

Correct Answer
verified

Correct Answer
verified

The conversion of nitrate (NO₃ ) to nitrogen gas (N₂) is called

Correct Answer
verified

Correct Answer
verified

Correct Answer
Answered by ExamLex AI
Mutualism is a type of symbiotic relatio...
View Answer

What is the source of CO₂ released into the atmosphere?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
Answered by ExamLex AI
Bioremediation is the use of microorgani...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified