Question 1

The lithosphere is an area that is without living microorganisms.

Accepted Answer

A) True 
 B)False  False

Question 2

Potable water is

Accepted Answer

A) contaminated. 
B) polluted. 
C) safe to drink. 
D) foul testing. 
E) None of the choices are correct. 
A) contaminated. 
B) polluted. 
C) safe to drink. 
D) foul testing. 
E) None of the choices are correct. C

Question 3

As energy is transferred to the next trophic level, how much of it is generally lost as heat?

Accepted Answer

A) None. 
B) 5 % 
C) 10 % 
D) 50 % 
E) 90 % 
A) None. 
B) 5 % 
C) 10 % 
D) 50 % 
E) 90 % E

Question 4

The Gaia Theory says that

Accepted Answer

A) the biosphere contains a diversity of habitats and niches favorable to life because living things have made it that way. 
B) the complementary actions of respiration and photosynthesis have maintained a relatively stable atmospheric pool of carbon dioxide and oxygen. 
C) all living things must obtain nutrients and energy from their environment. 
D) all elements have their origin in a nonliving, long-term reservoir. 
E) ecosystems are open with regard to energy because the sun is constantly renewing them with a renewable source. 
A) the biosphere contains a diversity of habitats and niches favorable to life because living things have made it that way. 
B) the complementary actions of respiration and photosynthesis have maintained a relatively stable atmospheric pool of carbon dioxide and oxygen. 
C) all living things must obtain nutrients and energy from their environment. 
D) all elements have their origin in a nonliving, long-term reservoir. 
E) ecosystems are open with regard to energy because the sun is constantly renewing them with a renewable source.

Question 5

Which of the following cannot be photoautrophs?

Accepted Answer

A) Bacteria 
B) Fungi 
C) Plants 
D) Algae 
E) All of the above can be photoautrophs. 
A) Bacteria 
B) Fungi 
C) Plants 
D) Algae 
E) All of the above can be photoautrophs.

Question 6

An _____ is the term for a deep groundwater source.

Accepted Answer

The answer of An _____ is the term for a...

Question 7

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

Accepted Answer

A) contains lithotrophs 
B) probably obtained from mining drainage 
C) very acidic 
D) contains microbes that oxidize sulfur to sulfates 
E) All of the choices are correct. 
A) contains lithotrophs 
B) probably obtained from mining drainage 
C) very acidic 
D) contains microbes that oxidize sulfur to sulfates 
E) All of the choices are correct.

Question 8

The overall role that a species serves in a community is its

Accepted Answer

A) niche. 
B) habitat. 
C) population. 
D) community. 
E) biome. 
A) niche. 
B) habitat. 
C) population. 
D) community. 
E) biome.

Question 9

Life would not be possible without

Accepted Answer

A) autotrophs 
B) primary consumers 
C) secondary consumers 
D) heterotrophs 
E) chemoheterotrophs 
A) autotrophs 
B) primary consumers 
C) secondary consumers 
D) heterotrophs 
E) chemoheterotrophs

Question 10

Describe the carbon cycle from the atmosphere to the primary producers and back again.

Accepted Answer

The carbon cycle is the process by which

Question 11

How does methyl mercury affect living things?

Accepted Answer

A) It interferes with translation of mRNA. 
B) It interferes with DNA replication. 
C) It inhibits transcription. 
D) It precipitates proteins. 
E) It inhibits the electron transport chain during cellular respiration. 
A) It interferes with translation of mRNA. 
B) It interferes with DNA replication. 
C) It inhibits transcription. 
D) It precipitates proteins. 
E) It inhibits the electron transport chain during cellular respiration.

Question 12

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

Accepted Answer

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

Question 13

Which of the following can carry out denitrification to completion?

Accepted Answer

A) Rhizobium 
B) Nitrobacter 
C) Pseudomonas 
D) Nostoc 
E) Azotobacter 
A) Rhizobium 
B) Nitrobacter 
C) Pseudomonas 
D) Nostoc 
E) Azotobacter

Question 14

Finding __________ in water is a good indication that it has been fecally contaminated.

Accepted Answer

The answer of Finding __________ in water is a good...

Question 15

Discuss the specific effects caused by the runoff of organic industrial waste into a freshwater stream.

Accepted Answer

The runoff of organic industrial waste i

Question 16

A group of organisms of the same species within a community is called a

Accepted Answer

A) niche. 
B) habitat. 
C) population. 
D) community. 
E) biome. 
A) niche. 
B) habitat. 
C) population. 
D) community. 
E) biome.

Question 17

Draw an energy pyramid and provide specific examples of each level.

Accepted Answer

An energy pyramid is a graphical represe

Question 18

Bacteria can function in all the following roles in an ecosystem, except as a

Accepted Answer

A) primary producer. 
B) consumer. 
C) decomposer. 
D) parasite. 
E) Bacteria can function in all the roles listed. 
A) primary producer. 
B) consumer. 
C) decomposer. 
D) parasite. 
E) Bacteria can function in all the roles listed.

Question 19

Carbon dioxide (CO2) is

Accepted Answer

A) removed from the atmosphere during photosynthesis. 
B) a source of carbon. 
C) returned to the atmosphere during respiration and fermentation. 
D) used by marine organisms to make limestone for their hard shells. 
E) All of the choices are correct. 
A) removed from the atmosphere during photosynthesis. 
B) a source of carbon. 
C) returned to the atmosphere during respiration and fermentation. 
D) used by marine organisms to make limestone for their hard shells. 
E) All of the choices are correct.

Question 20

The thin envelope of life that surrounds the earth's surface is called the

Accepted Answer

A) atmosphere. 
B) biosphere. 
C) lithosphere. 
D) hydrosphere. 
E) ecosystem. 
A) atmosphere. 
B) biosphere. 
C) lithosphere. 
D) hydrosphere. 
E) ecosystem.

Exam 26: Environmental Microbiology

The lithosphere is an area that is without living microorganisms.

Potable water is

As energy is transferred to the next trophic level, how much of it is generally lost as heat?

The Gaia Theory says that

Which of the following cannot be photoautrophs?

An _____ is the term for a deep groundwater source.

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

The overall role that a species serves in a community is its

Life would not be possible without

Describe the carbon cycle from the atmosphere to the primary producers and back again.

How does methyl mercury affect living things?

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

Which of the following can carry out denitrification to completion?

Finding __________ in water is a good indication that it has been fecally contaminated.

Discuss the specific effects caused by the runoff of organic industrial waste into a freshwater stream.

A group of organisms of the same species within a community is called a

Draw an energy pyramid and provide specific examples of each level.

Bacteria can function in all the following roles in an ecosystem, except as a

Carbon dioxide (CO2) is

The thin envelope of life that surrounds the earth's surface is called the

The Main Themes of Microbiology

The Chemistry of Biology

Tools of the Laboratory: Methods of Studying Microorganisms

A Survey of Prokaryotic Cells and Microorganisms

A Survey of Eukaryotic Cells and Microorganisms

An Introduction to Viruses

Microbial Nutrition, Ecology, and Growth

An Introduction to Microbial Metabolism: the Chemical Crossroads of Life

An Introduction to Microbial Genetics

Genetic Engineering: a Revolution in Molecular Biology

Physical and Chemical Agents for Microbial Control

Drugs, Microbes, Host-The Elements of Chemotherapy

Microbe-Human Interactions: Infection, Disease, and Epidemiology

An Introduction to Host Defenses and Innate Immunities

Adaptive, Specific Immunity and Immunization

Disorders in Immunity

Procedures for Identifying Pathogens and Diagnosing Infections

The Gram-Positive and Gram-Negative Cocci of Medical Importance

The Gram-Positive Bacilli of Medical Importance

The Gram-Negative Bacilli of Medical Importance

Miscellaneous Bacterial Agents of Disease

The Fungi of Medical Importance

The Parasites of Medical Importance

Introduction to Viruses That Infect Humans: the Dna Viruses

The Rna Viruses That Infect Humans

Applied and Industrial Microbiology

Filters

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

Carbon dioxide (CO₂) is