Question 1

You have isolated a bacterium that grows in a medium containing only inorganic nutrients. Ammonia is oxidized to a nitrate ion. This bacterium is

Accepted Answer

A)  gram-negative. 
B)  using anaerobic respiration. 
C)  a chemoautotroph. 
D)  a photoheterotroph. 
E)  a photoautotroph. 
A)  gram-negative. 
B)  using anaerobic respiration. 
C)  a chemoautotroph. 
D)  a photoheterotroph. 
E)  a photoautotroph. C

Question 2

Escherichia coli belongs to the

Accepted Answer

A)  green sulfur bacteria. 
B)  spirochetes. 
C)  actinomycetes. 
D)  gram-positive bacteria. 
E)  proteobacteria. 
A)  green sulfur bacteria. 
B)  spirochetes. 
C)  actinomycetes. 
D)  gram-positive bacteria. 
E)  proteobacteria. E

Question 3

You have isolated a prokaryotic cell. The first step in identification is a(n)

Accepted Answer

A)  Gram stain. 
B)  endospore stain. 
C)  lactose fermentation test. 
D)  DNA fingerprint. 
E)  flagella stain. 
A)  Gram stain. 
B)  endospore stain. 
C)  lactose fermentation test. 
D)  DNA fingerprint. 
E)  flagella stain. A

Question 4

Which one of the following does NOT belong with the others?

Accepted Answer

A)  Staphylococcus 
B)  Rickettsia 
C)  Wolbachia 
D)  Coxiella 
E)  Ehrlichia 
A)  Staphylococcus 
B)  Rickettsia 
C)  Wolbachia 
D)  Coxiella 
E)  Ehrlichia

Question 5

Which of the following pairs is mismatched?

Accepted Answer

A)  dissimilatory sulfate-reducing bacteria - produce H2S 
B)  Cytophaga - a gliding, nonfruiting bacterium 
C)  actinomycetes - reproduce by fragmentation 
D)  chemoautotrophic bacteria - fix atmospheric nitrogen 
E)  archaea - extremophiles 
A)  dissimilatory sulfate-reducing bacteria - produce H2S 
B)  Cytophaga - a gliding, nonfruiting bacterium 
C)  actinomycetes - reproduce by fragmentation 
D)  chemoautotrophic bacteria - fix atmospheric nitrogen 
E)  archaea - extremophiles

Question 6

You have isolated a bacterium that grows in a medium containing an organic substrate and nitrate in the absence of oxygen. The nitrate is reduced to nitrogen gas. You can be sure that this bacterium is

Accepted Answer

A)  a chemoautotroph. 
B)  a photoheterotroph. 
C)  a photoautotroph. 
D)  gram-positive. 
E)  using anaerobic respiration. 
A)  a chemoautotroph. 
B)  a photoheterotroph. 
C)  a photoautotroph. 
D)  gram-positive. 
E)  using anaerobic respiration.

Question 7

Salmonella, Shigella, Yersinia, and Serratia are all

Accepted Answer

A)  gram-negative facultatively anaerobic rods. 
B)  gram-positive aerobic cocci. 
C)  fermentative. 
D)  pathogens. 
E)  endospore-forming bacteria. 
A)  gram-negative facultatively anaerobic rods. 
B)  gram-positive aerobic cocci. 
C)  fermentative. 
D)  pathogens. 
E)  endospore-forming bacteria.

Question 8

Which of the following genera is an anaerobic gram-negative rod?

Accepted Answer

A)  Escherichia 
B)  Treponema 
C)  Neisseria 
D)  Staphylococcus 
E)  Bacteroides 
A)  Escherichia 
B)  Treponema 
C)  Neisseria 
D)  Staphylococcus 
E)  Bacteroides

Question 9

Borrelia is classified as a spirochete because it

Accepted Answer

A)  is transmitted by ticks. 
B)  possesses an axial filament. 
C)  is a rod. 
D)  is a pathogen. 
E)  is aerobic. 
A)  is transmitted by ticks. 
B)  possesses an axial filament. 
C)  is a rod. 
D)  is a pathogen. 
E)  is aerobic.

Question 10

Which of the following is NOT a characteristic inherent of the non-endospore-forming gram-positive rods?

Accepted Answer

A)  nonpathogenic 
B)  carry out fermentative metabolism 
C)  display a branched filamentous morphology 
D)  are aerotolerant 
E)  lack cell walls 
A)  nonpathogenic 
B)  carry out fermentative metabolism 
C)  display a branched filamentous morphology 
D)  are aerotolerant 
E)  lack cell walls

Question 11

A primary difference between cyanobacteria and purple and green phototrophic bacteria is

Accepted Answer

A)  color. 
B)  electron donor for CO₂ reduction. 
C)  energy source. 
D)  cell type. 
E)  cell wall type. 
A)  color. 
B)  electron donor for CO₂ reduction. 
C)  energy source. 
D)  cell type. 
E)  cell wall type.

Question 12

Which one of the following bacteria does NOT belong with the others?

Accepted Answer

A)  Salmonella 
B)  Burkholderia 
C)  Neisseria 
D)  Acidithiobacillus 
E)  Bordetella 
A)  Salmonella 
B)  Burkholderia 
C)  Neisseria 
D)  Acidithiobacillus 
E)  Bordetella

Question 13

Mycoplasmas differ from other bacteria in that they

Accepted Answer

A)  lack a cell wall. 
B)  are acid-fast. 
C)  are motile. 
D)  are gram-negative. 
E)  grow inside host cells. 
A)  lack a cell wall. 
B)  are acid-fast. 
C)  are motile. 
D)  are gram-negative. 
E)  grow inside host cells.

Question 14

Which of the following pairs is mismatched?

Accepted Answer

A)  Pseudomonas - gram-positive 
B)  aerobic, helical bacteria - gram-negative 
C)  mycobacteria - acid-fast 
D)  spirochete - axial filament 
E)  enterics - gram-negative 
A)  Pseudomonas - gram-positive 
B)  aerobic, helical bacteria - gram-negative 
C)  mycobacteria - acid-fast 
D)  spirochete - axial filament 
E)  enterics - gram-negative

Question 15

Which of the following form conidiospores?

Accepted Answer

A)  endospore-forming gram-positive rods and cocci 
B)  rickettsias 
C)  anaerobic gram-negative cocci 
D)  actinomycetes and related organisms 
E)  spiral and curved bacteria 
A)  endospore-forming gram-positive rods and cocci 
B)  rickettsias 
C)  anaerobic gram-negative cocci 
D)  actinomycetes and related organisms 
E)  spiral and curved bacteria

Question 16

Rickettsias differ from chlamydias in that rickettsias

Accepted Answer

A)  are enterics. 
B)  are gram-negative. 
C)  are intracellular parasites. 
D)  form elementary bodies. 
E)  require an arthropod for transmission. 
A)  are enterics. 
B)  are gram-negative. 
C)  are intracellular parasites. 
D)  form elementary bodies. 
E)  require an arthropod for transmission.

Question 17

Caulobacter are different from most bacteria in that they

Accepted Answer

A)  are gram-negative. 
B)  are gram-positive. 
C)  have stalks. 
D)  are motile. 
E)  lack cell walls. 
A)  are gram-negative. 
B)  are gram-positive. 
C)  have stalks. 
D)  are motile. 
E)  lack cell walls.

Question 18

Myxobacteria are classified as actinobacteria due to fungal-like lifestyle.

Accepted Answer

A) True 
 B)False

Question 19

Figure 11.1   What is group ʺc.ʺ in the key shown in Figure 11.1?

Accepted Answer

A)  spirochaetes 
B)  planctomycetes 
C)  chlamydiae 
D)  fusobacteria 
E)  bacteroidetes 
A)  spirochaetes 
B)  planctomycetes 
C)  chlamydiae 
D)  fusobacteria 
E)  bacteroidetes

Question 20

Which of the following pairs is NOT correctly matched?

Accepted Answer

A)  myxospore - gliding bacteria 
B)  endospore - Clostridium 
C)  endospore - Bacillus 
D)  elementary body - Escherichia 
E)  heterocyst - cyanobacteria 
A)  myxospore - gliding bacteria 
B)  endospore - Clostridium 
C)  endospore - Bacillus 
D)  elementary body - Escherichia 
E)  heterocyst - cyanobacteria

Exam 11: The Prokaryotes: Domains Bacteria and Archaea

You have isolated a bacterium that grows in a medium containing only inorganic nutrients. Ammonia is oxidized to a nitrate ion. This bacterium is

Escherichia coli belongs to the

You have isolated a prokaryotic cell. The first step in identification is a(n)

Which one of the following does NOT belong with the others?

Which of the following pairs is mismatched?

You have isolated a bacterium that grows in a medium containing an organic substrate and nitrate in the absence of oxygen. The nitrate is reduced to nitrogen gas. You can be sure that this bacterium is

Salmonella, Shigella, Yersinia, and Serratia are all

Which of the following genera is an anaerobic gram-negative rod?

Borrelia is classified as a spirochete because it

Which of the following is NOT a characteristic inherent of the non-endospore-forming gram-positive rods?

A primary difference between cyanobacteria and purple and green phototrophic bacteria is

Which one of the following bacteria does NOT belong with the others?

Mycoplasmas differ from other bacteria in that they

Which of the following pairs is mismatched?

Which of the following form conidiospores?

Rickettsias differ from chlamydias in that rickettsias

Caulobacter are different from most bacteria in that they

Myxobacteria are classified as actinobacteria due to fungal-like lifestyle.

Figure 11.1 What is group ʺc.ʺ in the key shown in Figure 11.1?

Which of the following pairs is NOT correctly matched?

The Microbial World and You

Chemical Principles

Observing Microorganisms Through a Microscope

Functional Anatomy of Prokaryotic and Eukaryotic Cells

Microbial Metabolism

Microbial Growth

The Control of Microbial Growth

Microbial Genetics

Biotechnology and Dna Technology

Classification of Microorganisms

The Eukaryotes: Fungi, Algae, Protozoa, and Helminths

Viruses, Viroids, and Prions

Principles of Disease and Epidemiology

Microbial Mechanisms of Pathogenicity

Adaptive Immunity: Specific Defenses of the Host

Practical Applications of Immunology

Disorders Associated With the Immune System

Antimicrobial Drugs

Microbial Diseases of the Skin and Eyes

Microbial Diseases of the Nervous System

Microbial Diseases of the Cardiovascular and Lymphatic Systems

Microbial Diseases of the Respiratory System

Microbial Diseases of the Digestive System

Microbial Disease of the Urinary and Reproductive Systems

Environmental Microbiology

Applied and Industrial Microbiology

Innate Immunity: Nonspecific Defenses of the Host

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