Question 1

Which of the following statements concerning the phosphorus cycle in bacteria is TRUE?

Accepted Answer

A)  The element cycles between different organic molecules. 
B)  It is the most important process for synthesizing proteins and nucleic acids. 
C)  The element alternates among several oxidative states. 
D)  The element changes from insoluble to soluble forms. 
E)  The element is converted to a gaseous state and is lost to the environment. 
A)  The element cycles between different organic molecules. 
B)  It is the most important process for synthesizing proteins and nucleic acids. 
C)  The element alternates among several oxidative states. 
D)  The element changes from insoluble to soluble forms. 
E)  The element is converted to a gaseous state and is lost to the environment.

Question 2

The organic material found in topsoil is called (humus/peat/compost).

Accepted Answer

The answer of The organic material found in topsoil is...

Question 3

How do soil conditions impact the cycling of nitrogen during decomposition?

Accepted Answer

Soil moisture content influences cycling

Question 4

Which form of sulfur can algae and plants use but not produce?

Accepted Answer

A)  hydrogen sulfide (H₂S) 
B)  elemental sulfur (S⁰) 
C)  sulfuric acid (H₂SO₄) 
D)  sulfate (SO₄²⁻ ) 
E)  both elemental sulfur and hydrogen sulfide 
A)  hydrogen sulfide (H₂S) 
B)  elemental sulfur (S⁰) 
C)  sulfuric acid (H₂SO₄) 
D)  sulfate (SO₄²⁻ ) 
E)  both elemental sulfur and hydrogen sulfide

Question 5

The dengue and Ebola viruses cause hemorrhagic fevers. Evaluate their threat levels as select agents using the criteria in the textbook, and decide whether they pose significant risk as biological weapons.

Accepted Answer

Impact:Dengue virus can cause serious de

Question 6

Which of the following disease agents has potential for both agroterrorism and bioterrorism?

Accepted Answer

A)  smallpox 
B)  tularemia 
C)  plague 
D)  brucellosis 
E)  blight 
A)  smallpox 
B)  tularemia 
C)  plague 
D)  brucellosis 
E)  blight

Question 7

Which of the following is the conversion of ammonium ion⁺ into nitrogen gas (N₂)?

Accepted Answer

A)  assimilation 
B)  anammox 
C)  nitrogen fixation 
D)  nitrification 
E)  denitrification 
A)  assimilation 
B)  anammox 
C)  nitrogen fixation 
D)  nitrification 
E)  denitrification

Question 8

A guild is composed of

Accepted Answer

A)  populations with similar metabolic activities. 
B)  microhabitats in a single location. 
C)  a single species. 
D)  microbiomes in a single zone. 
E)  ecosystems. 
A)  populations with similar metabolic activities. 
B)  microhabitats in a single location. 
C)  a single species. 
D)  microbiomes in a single zone. 
E)  ecosystems.

Question 9

Where does the bulk of biogeochemical cycling occur?

Accepted Answer

A)  in the air 
B)  in soil 
C)  in water 
D)  in the benthic zone 
E)  in both air and water 
A)  in the air 
B)  in soil 
C)  in water 
D)  in the benthic zone 
E)  in both air and water

Question 10

When one microbe's metabolic activities create favorable conditions for another microorganism, this is referred to as (competition/cooperation/facilitation).

Accepted Answer

The answer of When one microbe's metabolic activities create favorable...

Question 11

The "greenhouse gas" methane is produced by

Accepted Answer

A)  prokaryotes. 
B)  fungi. 
C)  algae. 
D)  animals. 
E)  both fungi and alga. 
A)  prokaryotes. 
B)  fungi. 
C)  algae. 
D)  animals. 
E)  both fungi and alga.

Question 12

Which of the following best describes the roles of microorganisms in the carbon cycle?

Accepted Answer

A)  primary producers 
B)  heterotrophs 
C)  decomposers 
D)  heterotrophs and decomposers 
E)  primary producers, heterotrophs and decomposers 
A)  primary producers 
B)  heterotrophs 
C)  decomposers 
D)  heterotrophs and decomposers 
E)  primary producers, heterotrophs and decomposers

Question 13

Anaerobic organisms reside in the ________ zone of a lake.

Accepted Answer

A)  limentic 
B)  benthic 
C)  littoral 
D)  profundal 
E)  both the littoral and the profundal 
A)  limentic 
B)  benthic 
C)  littoral 
D)  profundal 
E)  both the littoral and the profundal

Which of the following statements concerning the phosphorus cycle in bacteria is TRUE?

The organic material found in topsoil is called (humus/peat/compost).

How do soil conditions impact the cycling of nitrogen during decomposition?

Which form of sulfur can algae and plants use but not produce?

The dengue and Ebola viruses cause hemorrhagic fevers. Evaluate their threat levels as select agents using the criteria in the textbook, and decide whether they pose significant risk as biological weapons.

Which of the following disease agents has potential for both agroterrorism and bioterrorism?

Which of the following is the conversion of ammonium ion⁺ into nitrogen gas (N₂)?

A guild is composed of

Where does the bulk of biogeochemical cycling occur?

When one microbe's metabolic activities create favorable conditions for another microorganism, this is referred to as (competition/cooperation/facilitation).

The "greenhouse gas" methane is produced by

Which of the following best describes the roles of microorganisms in the carbon cycle?

Anaerobic organisms reside in the ________ zone of a lake.

A Brief History of Microbiology

The Chemistry of Microbiology

Cell Structure and Function

Microscopy, Staining, and Classification

Microbial Metabolism

Microbial Nutrition and Growth

Microbial Genetics

Recombinant DNA Technology

Controlling Microbial Growth in the Environment

Controlling Microbial Growth in the Body: Antimicrobial Drugs

Characterizing and Classifying Prokaryotes

Characterizing and Classifying Eukaryotes

Characterizing and Classifying Viruses, Viroids, and Prions

Infection, Infectious Diseases, and Epidemiology

Innate Immunity

Adaptive Immunity

Immunization and Immune Testing

Immune Disorders

Microbial Diseases of the Skin and Wounds

Microbial Diseases of the Nervous System and Eyes

Microbial Cardiovascular and Systemic Diseases

Microbial Diseases of the Respiratory System

Microbial Diseases of the Digestive System

Microbial Diseases of the Urinary and Reproductive Systems

Applied and Industrial Microbiology

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Exam 26: Microbial Ecology and Microbiomes

Which of the following statements concerning the phosphorus cycle in bacteria is TRUE?

The organic material found in topsoil is called (humus/peat/compost).

How do soil conditions impact the cycling of nitrogen during decomposition?

Which form of sulfur can algae and plants use but not produce?

The dengue and Ebola viruses cause hemorrhagic fevers. Evaluate their threat levels as select agents using the criteria in the textbook, and decide whether they pose significant risk as biological weapons.

Which of the following disease agents has potential for both agroterrorism and bioterrorism?

Which of the following is the conversion of ammonium ion⁺ into nitrogen gas (N₂)?

A guild is composed of

Where does the bulk of biogeochemical cycling occur?

When one microbe's metabolic activities create favorable conditions for another microorganism, this is referred to as (competition/cooperation/facilitation).

The "greenhouse gas" methane is produced by

Which of the following best describes the roles of microorganisms in the carbon cycle?

Anaerobic organisms reside in the ________ zone of a lake.

A Brief History of Microbiology

The Chemistry of Microbiology

Cell Structure and Function

Microscopy, Staining, and Classification

Microbial Metabolism

Microbial Nutrition and Growth

Microbial Genetics

Recombinant DNA Technology

Controlling Microbial Growth in the Environment

Controlling Microbial Growth in the Body: Antimicrobial Drugs

Characterizing and Classifying Prokaryotes

Characterizing and Classifying Eukaryotes

Characterizing and Classifying Viruses, Viroids, and Prions

Infection, Infectious Diseases, and Epidemiology

Innate Immunity

Adaptive Immunity

Immunization and Immune Testing

Immune Disorders

Microbial Diseases of the Skin and Wounds

Microbial Diseases of the Nervous System and Eyes

Microbial Cardiovascular and Systemic Diseases

Microbial Diseases of the Respiratory System

Microbial Diseases of the Digestive System

Microbial Diseases of the Urinary and Reproductive Systems

Applied and Industrial Microbiology

Filters