Question 1

The ________ are obligately anaerobic bacilli found in human intestines that aid in digestion of plant material.

Accepted Answer

A)  methanogen 
B)  mycoplasma 
C)  bacteroides 
D)  clostridium 
E)  cyanobacterium 
A)  methanogen 
B)  mycoplasma 
C)  bacteroides 
D)  clostridium 
E)  cyanobacterium

Question 2

Burkholderia is a common (true/opportunistic) pathogen of patients with cystic fibrosis.

Accepted Answer

The answer of Burkholderia is a common (true/opportunistic) pathogen of...

Question 3

Gram-negative nitrogen-fixing bacteria found in association with plant roots are

Accepted Answer

A)  alphaproteobacteria. 
B)  betaproteobacteria. 
C)  cyanobacteria. 
D)  gammaproteobacteria. 
E)  deeply branching bacteria. 
A)  alphaproteobacteria. 
B)  betaproteobacteria. 
C)  cyanobacteria. 
D)  gammaproteobacteria. 
E)  deeply branching bacteria.

Question 4

Which of the following is CORRECT about the prokaryotes known as deeply branching bacteria?

Accepted Answer

A)  They are chemoheterotrophs. 
B)  They lack peptidoglycan walls. 
C)  They are commonly found in acidic, anaerobic conditions. 
D)  They grow in long branching filaments. 
E)  They are photosynthetic. 
A)  They are chemoheterotrophs. 
B)  They lack peptidoglycan walls. 
C)  They are commonly found in acidic, anaerobic conditions. 
D)  They grow in long branching filaments. 
E)  They are photosynthetic.

Question 5

Halophiles grow equally well in the presence or absence of high salt concentrations.

Accepted Answer

A) True 
 B)False

Question 6

The domain Archaea includes prokaryotes that are

Accepted Answer

A)  endospore formers. 
B)  intracellular parasites. 
C)  members of the deeply branching bacteria. 
D)  human pathogens. 
E)  hyperthermophiles. 
A)  endospore formers. 
B)  intracellular parasites. 
C)  members of the deeply branching bacteria. 
D)  human pathogens. 
E)  hyperthermophiles.

Question 7

Which of the following characteristics distinguish the archaea from the bacteria?

Accepted Answer

A)  cell wall composition 
B)  ribosomal RNA (rRN
A)  sequences 
C)  the deoxyribonucleotides in the DNA 
D)  cytoplasmic membrane lipids 
E)  cell wall composition, cytoplasmic membrane lipids, and rRNA sequences 
A)  cell wall composition 
B)  ribosomal RNA (rRN
A)  sequences 
C)  the deoxyribonucleotides in the DNA 
D)  cytoplasmic membrane lipids 
E)  cell wall composition, cytoplasmic membrane lipids, and rRNA sequences

Question 8

The G + C content is a(n) (RNA/structural/genetic) determination used in classifying the different taxa of Gram-positive bacteria.

Accepted Answer

The answer of The G + C content is a(n)...

Question 9

The bacterial shape in Figure 11.2 is called (bacillus/vibrio/rod).

Accepted Answer

The answer of   
The bacterial shape in Figure...

Question 10

Various species of Streptomyces are important sources of antibiotics.

Accepted Answer

A) True 
 B)False

Question 11

The purple sulfur bacteria carry out oxygenic photosynthesis.

Accepted Answer

A) True 
 B)False

Question 12

Which of the following diseases is NOT associated with bacteria that form endospores?

Accepted Answer

A)  tetanus 
B)  anthrax 
C)  gangrene 
D)  botulism 
E)  toxic shock syndrome 
A)  tetanus 
B)  anthrax 
C)  gangrene 
D)  botulism 
E)  toxic shock syndrome

Question 13

The archaea known as halophiles

Accepted Answer

A)  require temperatures above 45∘C to survive. 
B)  require salt concentrations of 9% or greater to survive. 
C)  are members of the phylum Euryarchaeota. 
D)  are members of the Euryarchaeota and require temperatures above 45∘C. 
E)  are members of the Euryarchaeota and require salt concentrations above 9%. 
A)  require temperatures above 45∘C to survive. 
B)  require salt concentrations of 9% or greater to survive. 
C)  are members of the phylum Euryarchaeota. 
D)  are members of the Euryarchaeota and require temperatures above 45∘C. 
E)  are members of the Euryarchaeota and require salt concentrations above 9%.

Question 14

Describe the major taxonomic divisions of prokaryotic organisms.

Accepted Answer

Bergey's Manual of Systematic Bacteriolo

Question 15

The reduction of nitrogen gas to ammonia is called nitrogen (fixation/cycling/oxidation).

Accepted Answer

The answer of The reduction of nitrogen gas to ammonia...

Question 16

The anaerobic Clostridium species are troublesome pathogens largely because of their capacity for

Accepted Answer

A)  endospore production. 
B)  rapid reproduction. 
C)  oxygen production. 
D)  biofilm production. 
E)  high salt tolerance. 
A)  endospore production. 
B)  rapid reproduction. 
C)  oxygen production. 
D)  biofilm production. 
E)  high salt tolerance.

Question 17

When an endospore germinates, it gives rise to two daughter cells called vegetative cells.

Accepted Answer

A) True 
 B)False

Question 18

Will is a graduate student working in a microbiology lab. He is given the task of characterizing a newly discovered nitrogen fixing bacterium. What type of tests or observations will help him determine whether it is a member of the Cyanobacteria, alphaproteobacteria, or gammaproteobacteria?

Accepted Answer

If the bacteria are coccus or disc-shape

Question 19

Which of the following bacterial genera produce(s) endospores?

Accepted Answer

A)  Bacillus 
B)  Clostridium 
C)  Lactobacillus 
D)  both Bacillus and Lactobacillus 
E)  both Bacillus and Clostridium 
A)  Bacillus 
B)  Clostridium 
C)  Lactobacillus 
D)  both Bacillus and Lactobacillus 
E)  both Bacillus and Clostridium

Question 20

Members of which of the following genera are the most common sexually transmitted bacteria in the United States?

Accepted Answer

A)  Bacteroides 
B)  Rickettsia 
C)  Chlamydia 
D)  Helicobacter 
E)  Treponema 
A)  Bacteroides 
B)  Rickettsia 
C)  Chlamydia 
D)  Helicobacter 
E)  Treponema

Exam 11: Characterizing and Classifying Prokaryotes

The ________ are obligately anaerobic bacilli found in human intestines that aid in digestion of plant material.

Burkholderia is a common (true/opportunistic) pathogen of patients with cystic fibrosis.

Gram-negative nitrogen-fixing bacteria found in association with plant roots are

Which of the following is CORRECT about the prokaryotes known as deeply branching bacteria?

Halophiles grow equally well in the presence or absence of high salt concentrations.

The domain Archaea includes prokaryotes that are

Which of the following characteristics distinguish the archaea from the bacteria?

The G + C content is a(n) (RNA/structural/genetic) determination used in classifying the different taxa of Gram-positive bacteria.

The bacterial shape in Figure 11.2 is called (bacillus/vibrio/rod).

Various species of Streptomyces are important sources of antibiotics.

The purple sulfur bacteria carry out oxygenic photosynthesis.

Which of the following diseases is NOT associated with bacteria that form endospores?

The archaea known as halophiles

Describe the major taxonomic divisions of prokaryotic organisms.

The reduction of nitrogen gas to ammonia is called nitrogen (fixation/cycling/oxidation).

The anaerobic Clostridium species are troublesome pathogens largely because of their capacity for

When an endospore germinates, it gives rise to two daughter cells called vegetative cells.

Will is a graduate student working in a microbiology lab. He is given the task of characterizing a newly discovered nitrogen fixing bacterium. What type of tests or observations will help him determine whether it is a member of the Cyanobacteria, alphaproteobacteria, or gammaproteobacteria?

Which of the following bacterial genera produce(s) endospores?

Members of which of the following genera are the most common sexually transmitted bacteria in the United States?

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 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

Microbial Ecology and Microbiomes

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