Question 1

Water disinfection agents such as chlorine can easily inactivate viruses.

Accepted Answer

A) True 
 B)False

Question 2

Which process produces a gaseous product that can be used as fuel to provide heat or power for a wastewater treatment plant?

Accepted Answer

A) trickling filter secondary wastewater treatment 
B) aerobic secondary wastewater treatment 
C) anaerobic secondary wastewater treatment 
D) primary wastewater treatment 
A) trickling filter secondary wastewater treatment 
B) aerobic secondary wastewater treatment 
C) anaerobic secondary wastewater treatment 
D) primary wastewater treatment

Question 3

To further reduce the possibility of biological contamination,MOST treatment plants treat the effluent with

Accepted Answer

A) fluorine. 
B) chlorine. 
C) ozone. 
D) extreme heat. 
A) fluorine. 
B) chlorine. 
C) ozone. 
D) extreme heat.

Question 4

Secondary disinfection of drinking water is necessary to

Accepted Answer

A) maintain sufficient residual in the water distribution system to inhibit microbial growth. 
B) prevent the formation of biofilms on pipes in the water distribution system. 
C) neutralize taste- and odor-producing organic compounds. 
D) kill Cryptosporidium and other resistant pathogens. 
A) maintain sufficient residual in the water distribution system to inhibit microbial growth. 
B) prevent the formation of biofilms on pipes in the water distribution system. 
C) neutralize taste- and odor-producing organic compounds. 
D) kill Cryptosporidium and other resistant pathogens.

Question 5

Microbial plastics are composed of

Accepted Answer

A) polysaccharides. 
B) polyhydroxyalkanoates. 
C) polyaromatic hydrocarbons. 
D) xenobiotics. 
A) polysaccharides. 
B) polyhydroxyalkanoates. 
C) polyaromatic hydrocarbons. 
D) xenobiotics.

Question 6

Organisms that degrade hydrocarbons in crude oil are ubiquitous in the environment and have evolved special strategies,such as surfactant production,that allow them to readily use hydrocarbons as electron donors and carbon sources.

Accepted Answer

A) True 
 B)False

Question 7

Wastewater plants are usually constructed to handle both domestic and industrial wastes.

Accepted Answer

A) True 
 B)False

Question 8

For water to be considered safe to drink,it MUST be treated with four distinct methods.

Accepted Answer

A) True 
 B)False

Question 9

If you were in charge of preserving ancient stone ruins and sculptures in an outdoor environment,what strategies would you use to prevent deterioration of the stone?

Accepted Answer

Biodeterioration is important to the ove

Question 10

Which microorganisms commonly thrive in drinking water distribution systems and how might they impact human health?

Accepted Answer

Despite sufficient chlorination of drink

Question 11

What microbial processes are involved in the bioremediation of organic pollutants such as hydrocarbons and the bioremediation of inorganic pollutants such as uranium? What are the end products of bioremediation for hydrocarbons and uranium?

Accepted Answer

The bioremediation of hydrocarbons is ge

Question 12

Secondary treatment may be aerobic or anoxic.

Accepted Answer

A) True 
 B)False

Question 13

Opportunistic pathogens such as Legionella,Pseudomonas,and Mycobacterium species have the ability to grow within ________,which may enhance their ability to survive in water distribution systems.

Accepted Answer

A) human saliva 
B) fish 
C) protists 
D) UV irradiated water 
A) human saliva 
B) fish 
C) protists 
D) UV irradiated water

Question 14

Treatment of drinking water by UV irradiation is effective at ________,but it does NOT remove ________.

Accepted Answer

A) killing bacteria and eukaryotic pathogens / odor- and taste- altering organic compounds 
B) killing viruses / bacteria and eukaryotic pathogens 
C) removing order- and taste- altering organic compounds / viruses 
D) killing bacteria / viruses and eukaryotic pathogens 
A) killing bacteria and eukaryotic pathogens / odor- and taste- altering organic compounds 
B) killing viruses / bacteria and eukaryotic pathogens 
C) removing order- and taste- altering organic compounds / viruses 
D) killing bacteria / viruses and eukaryotic pathogens

Question 15

The use of ________ to treat drinking water,which began in 1913,reduces the incidence of waterborne diseases.

Accepted Answer

A) coagulation 
B) chlorination 
C) filtration 
D) UV irradiation 
A) coagulation 
B) chlorination 
C) filtration 
D) UV irradiation

Question 16

Fungi are the main contributor to the biodeterioration of stone building materials and concrete wastewater distribution systems.

Accepted Answer

A) True 
 B)False

Question 17

Describe floc formation in the activated sludge process.

Accepted Answer

During the activated sludge process,cont

Question 18

Water distribution systems contain

Accepted Answer

A) very few bacteria or other microorganisms. 
B) biofilms that may harbor opportunistic pathogens. 
C) numerous grazing protists that consume bacteria. 
D) biofilms that may harbor opportunistic pathogens and numerous grazing protists that consume bacteria. 
A) very few bacteria or other microorganisms. 
B) biofilms that may harbor opportunistic pathogens. 
C) numerous grazing protists that consume bacteria. 
D) biofilms that may harbor opportunistic pathogens and numerous grazing protists that consume bacteria.

Question 19

Water leaving an efficient wastewater treatment facility ideally has a biochemical oxygen demand (BOD)between ________ units.

Accepted Answer

A) 50 and 100 
B) 25 and 50 
C) 5 and 25 
D) 0 and 5 
A) 50 and 100 
B) 25 and 50 
C) 5 and 25 
D) 0 and 5

Question 20

While wastewater is in an activated sludge tank,much of the organic matter is

Accepted Answer

A) oxidized. 
B) adsorbed to the floc. 
C) incorporated into microbial cells. 
D) oxidized,adsorbed to the floc,and incorporated into microbial cells. 
A) oxidized. 
B) adsorbed to the floc. 
C) incorporated into microbial cells. 
D) oxidized,adsorbed to the floc,and incorporated into microbial cells.

Exam 21: Microbiology of the Built Environment

Water disinfection agents such as chlorine can easily inactivate viruses.

Which process produces a gaseous product that can be used as fuel to provide heat or power for a wastewater treatment plant?

To further reduce the possibility of biological contamination,MOST treatment plants treat the effluent with

Secondary disinfection of drinking water is necessary to

Microbial plastics are composed of

Organisms that degrade hydrocarbons in crude oil are ubiquitous in the environment and have evolved special strategies,such as surfactant production,that allow them to readily use hydrocarbons as electron donors and carbon sources.

Wastewater plants are usually constructed to handle both domestic and industrial wastes.

For water to be considered safe to drink,it MUST be treated with four distinct methods.

If you were in charge of preserving ancient stone ruins and sculptures in an outdoor environment,what strategies would you use to prevent deterioration of the stone?

Which microorganisms commonly thrive in drinking water distribution systems and how might they impact human health?

What microbial processes are involved in the bioremediation of organic pollutants such as hydrocarbons and the bioremediation of inorganic pollutants such as uranium? What are the end products of bioremediation for hydrocarbons and uranium?

Secondary treatment may be aerobic or anoxic.

Opportunistic pathogens such as Legionella,Pseudomonas,and Mycobacterium species have the ability to grow within ________,which may enhance their ability to survive in water distribution systems.

Treatment of drinking water by UV irradiation is effective at ________,but it does NOT remove ________.

The use of ________ to treat drinking water,which began in 1913,reduces the incidence of waterborne diseases.

Fungi are the main contributor to the biodeterioration of stone building materials and concrete wastewater distribution systems.

Describe floc formation in the activated sludge process.

Water distribution systems contain

Water leaving an efficient wastewater treatment facility ideally has a biochemical oxygen demand (BOD)between ________ units.

While wastewater is in an activated sludge tank,much of the organic matter is

Microorganisms and Microbiology

Microbial Cell Structure and Function

Microbial Metabolism

Molecular Biology

Microbial Growth and Control

Microbial Genomics

Metabolic Regulation

Viruses and Virology

Viral Genomes and Diversity

Genetics of Bacteria and Archaea

Genetic Engineering and Biotechnology

Microbial Evolution and Systematics

Metabolic Diversity of Microorganisms

Functional Diversity of Bacteria

Diversity of Bacteria

Diversity of Archaea

Diversity of Eukaryotic Microorganisms

Methods in Microbial Ecology

Microbial Ecosystems

Nutrient Cycles

Microbial Symbioses

Microbial Interactions With Humans

Immunity and Host Defense

Immune Mechanisms

Molecular Immunology

Diagnostic Microbiology

Epidemiology

Person-To-Person Bacterial and Viral Diseases

Vectorborne and Soilborne Bacterial and Viral Diseases

Water and Food As Vehicles of Bacterial Diseases

Eukaryotic Pathogens: Fungal and Parasitic Diseases

Filters

Treatment of drinking water by UV irradiation is effective at ,but it does NOT remove .