Question 1

After reading the news of an E. coli threat in the community, your family and friends ask you, "Is E. coli a pathogen?" What would you answer?

Accepted Answer

Some strains of E. coli grow normally in

Question 2

An ancient ________ is assumed to be in the same lineage as mitochondria.

Accepted Answer

A)  Rhizobium 
B)  Mycoplasma 
C)  Clostridium 
D)  Rickettsia 
E)  cyanobacterium 
A)  Rhizobium 
B)  Mycoplasma 
C)  Clostridium 
D)  Rickettsia 
E)  cyanobacterium

Question 3

Describe the metabolic characteristics of Chlorobium species.

Accepted Answer

Chlorobi are strict photolithotrophs, us

Question 4

Which of the following factors is NOT involved in initiation of spore formation in firmicutes?

Accepted Answer

A)  carbon starvation 
B)  light limitation 
C)  phosphate starvation 
D)  nitrogen starvation 
E)  low pH 
A)  carbon starvation 
B)  light limitation 
C)  phosphate starvation 
D)  nitrogen starvation 
E)  low pH

Question 5

Which feature, indicated in the following figure, do Chlorobi share with Chloroflexi and Chloracidobacterium thermophilum?

Accepted Answer

A)  chlorosomes 
B)  thylakoids 
C)  halophily 
D)  endospores 
E)  hormogonia 
A)  chlorosomes 
B)  thylakoids 
C)  halophily 
D)  endospores 
E)  hormogonia

Question 6

In sewage-treatment systems, nitrifiers such as ________ are used to decrease the reduced nitrogen content.

Accepted Answer

A)  Neisseria gonorrhoeae and N. meningitidis 
B)  Thiobacillus spp. 
C)  Nitrosomonas, Nitrosolobus, and Nitrosovibrio 
D)  Escherichia spp. 
E)  Helicobacter and Campylobacter 
A)  Neisseria gonorrhoeae and N. meningitidis 
B)  Thiobacillus spp. 
C)  Nitrosomonas, Nitrosolobus, and Nitrosovibrio 
D)  Escherichia spp. 
E)  Helicobacter and Campylobacter

Question 7

Describe the lifestyle and development of Streptomyces mycelia.

Accepted Answer

When a Streptomyces spore germinates, it

Question 8

Which phylum contains the purple bacteria?

Accepted Answer

A)  cyanobacteria 
B)  proteobacteria 
C)  actinobacteria 
D)  fusobacteria 
E)  firmicutes 
A)  cyanobacteria 
B)  proteobacteria 
C)  actinobacteria 
D)  fusobacteria 
E)  firmicutes

Question 9

Some Gram-negative bacteria branch more deeply from the proteobacteria than the five Greek-lettered classes do from each other. Which phyla listed below is deep-branching Gram-negative?

Accepted Answer

A)  Thermotogo 
B)  Aquifex 
C)  Flavobacteria 
D)  Protobacteria 
E)  Chlorobi 
A)  Thermotogo 
B)  Aquifex 
C)  Flavobacteria 
D)  Protobacteria 
E)  Chlorobi

Question 10

Bacteria in the genus Nitrospira

Accepted Answer

A)  are Gram-negative, true lithotrophs or autotrophs. 
B)  possess carboxysomes, where they fix carbon dioxide or carbonate. 
C)  remove excess nitrite in aquatic ecosystems. 
D)  form symbiotic associations with other bacteria. 
E)  are generally found in freshwater or salt water. 
A)  are Gram-negative, true lithotrophs or autotrophs. 
B)  possess carboxysomes, where they fix carbon dioxide or carbonate. 
C)  remove excess nitrite in aquatic ecosystems. 
D)  form symbiotic associations with other bacteria. 
E)  are generally found in freshwater or salt water.

Question 11

How could nitrifiers be utilized in treatment of wastewater?

Accepted Answer

Nitrifiers oxidize ammonia to

After reading the news of an E. coli threat in the community, your family and friends ask you, "Is E. coli a pathogen?" What would you answer?

An ancient ________ is assumed to be in the same lineage as mitochondria.

Describe the metabolic characteristics of Chlorobium species.

Which of the following factors is NOT involved in initiation of spore formation in firmicutes?

Which feature, indicated in the following figure, do Chlorobi share with Chloroflexi and Chloracidobacterium thermophilum?

In sewage-treatment systems, nitrifiers such as ________ are used to decrease the reduced nitrogen content.

Describe the lifestyle and development of Streptomyces mycelia.

Which phylum contains the purple bacteria?

Some Gram-negative bacteria branch more deeply from the proteobacteria than the five Greek-lettered classes do from each other. Which phyla listed below is deep-branching Gram-negative?

Bacteria in the genus Nitrospira

How could nitrifiers be utilized in treatment of wastewater?

Microbial Life: Origin and Discovery

Observing the Microbial Cell

Cell Structure and Function

Bacterial Culture, Growth, and Development

Environmental Influences and Control of Microbial Growth

Viruses

Genomes and Chromosomes

Transcription, Translation, and Bioinformatics

Gene Transfer, Mutations, and Genome Evolution

Molecular Regulation

Viral Molecular Biology

Biotechniques and Synthetic Biology

Energetics and Catabolism

Electron Flow in Organotrophy, Lithotrophy, and Phototrophy

Biosynthesis

Food and Industrial Microbiology

Origins and Evolution

Archaeal Diversity

Eukaryotic Diversity

Microbial Ecology

Microbes in Global Elemental Cycles

Human Microbiota and Innate Immunity

The Adaptive Immune Response

Microbial Pathogenesis

Microbial Diseases

Antimicrobial Therapy

Clinical Microbiology and Epidemiology

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Exam 18: Bacterial Diversity

After reading the news of an E. coli threat in the community, your family and friends ask you, "Is E. coli a pathogen?" What would you answer?

An ancient ________ is assumed to be in the same lineage as mitochondria.

Describe the metabolic characteristics of Chlorobium species.

Which of the following factors is NOT involved in initiation of spore formation in firmicutes?

Which feature, indicated in the following figure, do Chlorobi share with Chloroflexi and Chloracidobacterium thermophilum?

In sewage-treatment systems, nitrifiers such as ________ are used to decrease the reduced nitrogen content.

Describe the lifestyle and development of Streptomyces mycelia.

Which phylum contains the purple bacteria?

Some Gram-negative bacteria branch more deeply from the proteobacteria than the five Greek-lettered classes do from each other. Which phyla listed below is deep-branching Gram-negative?

Bacteria in the genus Nitrospira

How could nitrifiers be utilized in treatment of wastewater?

Microbial Life: Origin and Discovery

Observing the Microbial Cell

Cell Structure and Function

Bacterial Culture, Growth, and Development

Environmental Influences and Control of Microbial Growth

Viruses

Genomes and Chromosomes

Transcription, Translation, and Bioinformatics

Gene Transfer, Mutations, and Genome Evolution

Molecular Regulation

Viral Molecular Biology

Biotechniques and Synthetic Biology

Energetics and Catabolism

Electron Flow in Organotrophy, Lithotrophy, and Phototrophy

Biosynthesis

Food and Industrial Microbiology

Origins and Evolution

Archaeal Diversity

Eukaryotic Diversity

Microbial Ecology

Microbes in Global Elemental Cycles

Human Microbiota and Innate Immunity

The Adaptive Immune Response

Microbial Pathogenesis

Microbial Diseases

Antimicrobial Therapy

Clinical Microbiology and Epidemiology

Filters