Question 1

Campylobacter jejuni is the cause of ______.

Accepted Answer

A) abortion in sheep and enteritis diarrhea in humans 
B) wilt disease in plants 
C) fowl cholera 
D) meningitis 
A) abortion in sheep and enteritis diarrhea in humans 
B) wilt disease in plants 
C) fowl cholera 
D) meningitis

Question 2

Which of the following is true of Agrobacterium tumefaciens?

Accepted Answer

A) It is capable of nitrogen fixation. 
B) It causes crown gall disease when it carries a tumor inducing (Ti)plasmid. 
C) It can enter plants through unbroken leaf tissue. 
D) All of the choices are correct. 
A) It is capable of nitrogen fixation. 
B) It causes crown gall disease when it carries a tumor inducing (Ti)plasmid. 
C) It can enter plants through unbroken leaf tissue. 
D) All of the choices are correct.

Question 3

Most of the oligotrophic proteobacteria are found in the _______.

Accepted Answer

A) alpha proteobacteria 
B) beta proteobacteria 
C) gamma proteobacteria 
D) delta proteobacteria 
A) alpha proteobacteria 
B) beta proteobacteria 
C) gamma proteobacteria 
D) delta proteobacteria

Question 4

Escherichia coli has not been found to be pathogenic in humans.

Accepted Answer

A) True 
 B)False

Question 5

Rickettsias are not ______.

Accepted Answer

A) able to use glucose as an energy source 
B) the cause of Rocky Mountain Spotted Fever 
C) obligate intracellular parasites 
D) All of the choices are correct. 
A) able to use glucose as an energy source 
B) the cause of Rocky Mountain Spotted Fever 
C) obligate intracellular parasites 
D) All of the choices are correct.

Question 6

The largest group of proteobacteria are the ______.

Accepted Answer

A) alpha proteobacteria 
B) beta proteobacteria 
C) gamma proteobacteria 
D) delta proteobacteria 
A) alpha proteobacteria 
B) beta proteobacteria 
C) gamma proteobacteria 
D) delta proteobacteria

Question 7

Recently a methanotrophic proteobacterium was reported that oxidizes methane in anoxic environments by coupling methanotrophy with nitrite reduction,known as _______.In this process of reducing nitrite (NO2-)to nitrogen gas (N2),molecular oxygen is released within the microbe,which it harnesses for methane oxidation.

Accepted Answer

Question 8

One strategy used by dissimilatory metal-reducing bacteria that enable their use of insoluble compounds as electron acceptors is to localize cytochromes in the outer membrane,rather than the plasma membrane to enable the direct transfer of electrons from cytochromes to the extracellular metal.

Accepted Answer

A) True 
 B)False

Question 9

Mineralization refers to

Accepted Answer

A) the breakdown of organic materials to inorganic materials. 
B) the release of various minerals from ores. 
C) the utilization of minerals as energy sources. 
D) the incorporation of inorganic material into organic materials. 
A) the breakdown of organic materials to inorganic materials. 
B) the release of various minerals from ores. 
C) the utilization of minerals as energy sources. 
D) the incorporation of inorganic material into organic materials.

Question 10

Members of the order Desulfovibrionales use which of the following as electron acceptors during anaerobic respiration?

Accepted Answer

A) Elemental sulfur or sulfate 
B) O2 
C) CO2 
D) Organic acids and alcohols 
A) Elemental sulfur or sulfate 
B) O2 
C) CO2 
D) Organic acids and alcohols

Question 11

Which of the following best describes the photosynthetic membranes of the purple nonsulfur bacteria?

Accepted Answer

A) The photosynthetic membranes are attached to the plasma membrane but not continuous with it. 
B) The photosynthetic membranes are not associated with the plasma membrane. 
C) The photosynthetic membranes are continuous with the plasma membrane. 
D) There are no photosynthetic membranes in the purple nonsulfur bacteria. 
A) The photosynthetic membranes are attached to the plasma membrane but not continuous with it. 
B) The photosynthetic membranes are not associated with the plasma membrane. 
C) The photosynthetic membranes are continuous with the plasma membrane. 
D) There are no photosynthetic membranes in the purple nonsulfur bacteria.

Question 12

Sulfate-reducing bacteria (SRB)are very important in the cycling of sulfur within ecosystems because significant amounts of sulfate are present in almost all aquatic and terrestrial habitats,making SRB widespread and active.

Accepted Answer

A) True 
 B)False

Question 13

The use of metals as terminal electron acceptors is/are known as _______ because the metals are not incorporated into biomass.

Accepted Answer

A) dissimilatory metal reduction 
B) metallo-neutral 
C) Fenton reactions 
D) negative metallic addition 
A) dissimilatory metal reduction 
B) metallo-neutral 
C) Fenton reactions 
D) negative metallic addition

Question 14

Members of the genus Neisseria cause which of the following human diseases?

Accepted Answer

A) Gonorrhea 
B) Syphilis 
C) Genital herpes 
D) Diarrhea gastroenteritis 
A) Gonorrhea 
B) Syphilis 
C) Genital herpes 
D) Diarrhea gastroenteritis

Question 15

All terrestrial ammonia-oxidizing bacteria are $\beta$-proteobacteria,including Nitrosomonas and Nitrosospira in the Nitrosomonadaceae family.

Accepted Answer

A) True 
 B)False

Question 16

The purple nonsulfur bacteria

Accepted Answer

A) grow anaerobically as photoorganoheterotrophs. 
B) utilize organic molecules as a source of electrons for photosynthesis. 
C) typically can grow aerobically in the dark as chemoorganoheterotrophs. 
D) All of the choices are correct. 
A) grow anaerobically as photoorganoheterotrophs. 
B) utilize organic molecules as a source of electrons for photosynthesis. 
C) typically can grow aerobically in the dark as chemoorganoheterotrophs. 
D) All of the choices are correct.

Question 17

Which of the following genera include bacteria with stalks?

Accepted Answer

A) Vibrio 
B) Campylobacter 
C) Caulobacter 
D) Rhizobium 
A) Vibrio 
B) Campylobacter 
C) Caulobacter 
D) Rhizobium

Question 18

Myxobacteria lyse bacteria and yeasts by secretion of digestive enzymes.They then use the resulting peptides and amino acids as a source of which of the following?

Accepted Answer

A) Phosphate 
B) Nitrogen 
C) Iron 
D) All of the choices are correct. 
A) Phosphate 
B) Nitrogen 
C) Iron 
D) All of the choices are correct.

Question 19

Escherichia coli is a good indicator of fecal contamination of water supplies.

Accepted Answer

A) True 
 B)False

Question 20

Species of the genus Thiobacillus

Accepted Answer

A) oxidize inorganic sulfur compounds and produce ATP. 
B) produce acids that leach metals out of ore. 
C) are ubiquitous in soil,freshwater,and marine environments. 
D) All of the choices are correct. 
A) oxidize inorganic sulfur compounds and produce ATP. 
B) produce acids that leach metals out of ore. 
C) are ubiquitous in soil,freshwater,and marine environments. 
D) All of the choices are correct.

Exam 22: The Proteobacteria

Campylobacter jejuni is the cause of ______.

Which of the following is true of Agrobacterium tumefaciens?

Most of the oligotrophic proteobacteria are found in the _______.

Escherichia coli has not been found to be pathogenic in humans.

Rickettsias are not ______.

The largest group of proteobacteria are the ______.

One strategy used by dissimilatory metal-reducing bacteria that enable their use of insoluble compounds as electron acceptors is to localize cytochromes in the outer membrane,rather than the plasma membrane to enable the direct transfer of electrons from cytochromes to the extracellular metal.

Mineralization refers to

Members of the order Desulfovibrionales use which of the following as electron acceptors during anaerobic respiration?

Which of the following best describes the photosynthetic membranes of the purple nonsulfur bacteria?

Sulfate-reducing bacteria (SRB)are very important in the cycling of sulfur within ecosystems because significant amounts of sulfate are present in almost all aquatic and terrestrial habitats,making SRB widespread and active.

The use of metals as terminal electron acceptors is/are known as _______ because the metals are not incorporated into biomass.

Members of the genus Neisseria cause which of the following human diseases?

All terrestrial ammonia-oxidizing bacteria are β\betaβ -proteobacteria,including Nitrosomonas and Nitrosospira in the Nitrosomonadaceae family.

The purple nonsulfur bacteria

Which of the following genera include bacteria with stalks?

Myxobacteria lyse bacteria and yeasts by secretion of digestive enzymes.They then use the resulting peptides and amino acids as a source of which of the following?

Escherichia coli is a good indicator of fecal contamination of water supplies.

Species of the genus Thiobacillus

The Evolution of Microorganisms and Microbiology

Microscopy

Bacterial Cell Structure

Archaeal Cell Structure

Eukaryotic Cell Structure

Viruses and Other Acellular Infectious Agents

Microbial Growth

Control of Microorganisms in the Environment

Antimicrobial Chemotherapy

Introduction to Metabolism

Catabolism: Energy Release and Conservation

Anabolism: the Use of Energy in Biosynthesis

Bacterial Genome Replication and Expression

Regulation of Bacterial Cellular Processes

Eukaryotic and Archaeal Genome Replication and Expression

Mechanisms of Genetic Variation

Recombinant DNA Technology

Microbial Genomics

Microbial Taxonomy and the Evolution of Diversity

Archaea

The Deinococci, Mollicutes, and Nonproteobacterial Gram-Negative Bacteria

Firmicutes: The Low G-C Gram-Positive Bacteria

Actinobacteria: the High G-C Gram-Positive Bacteria

Protists

Fungi Eumycota

Viruses

Biogeochemical Cycling and Global Climate Change

Methods in Microbial Ecology

Microorganisms in Marine and Freshwater Ecosystems

Microorganisms in Terrestrial Ecosystems

Microbial Interactions

Innate Host Resistance

Adaptive Immunity

Pathogenicity and Infection

Clinical Microbiology and Immunology

Epidemiology and Public Health Microbiology

Human Diseases Caused by Viruses and Prions

Human Diseases Caused by Bacteria

Human Diseases Caused by Fungi and Protists

Microbiology of Food

Biotechnology and Industrial Microbiology

Applied Environmental Microbiology

Filters

All terrestrial ammonia-oxidizing bacteria are $\beta$ -proteobacteria,including Nitrosomonas and Nitrosospira in the Nitrosomonadaceae family.