Question 1

Both Beggiatoa and the purple sulfur bacteria use H2S. These bacteria differ in that Beggiatoa

Accepted Answer

A)  belongs to the gammaproteobacteria. 
B)  uses H2S for a carbon source. 
C)  uses H2S for an energy source. 
D)  uses light energy. 
E)  is a heterotroph. 
A)  belongs to the gammaproteobacteria. 
B)  uses H2S for a carbon source. 
C)  uses H2S for an energy source. 
D)  uses light energy. 
E)  is a heterotroph.

Question 2

The human body is typically free of archaeal species.

Accepted Answer

A) True 
 B)False

Question 3

Photosynthetic organisms always produce oxygen gas as a metabolic byproduct.

Accepted Answer

A) True 
 B)False

Question 4

Two distinguishing factors of the epsilonproteobacteria that they are motile and microaerophilic.

Accepted Answer

A) True 
 B)False

Question 5

You have isolated an aerobic gram-positive, endospore-forming bacterium that grows well on nutrient agar. To which of the following groups does it most likely belong?

Accepted Answer

A)  deltaproteobacteria 
B)  bacillales 
C)  phototrophic bacteria 
D)  gammaproteobacteria 
E)  The answer cannot be determined based on the information provided. 
A)  deltaproteobacteria 
B)  bacillales 
C)  phototrophic bacteria 
D)  gammaproteobacteria 
E)  The answer cannot be determined based on the information provided.

Question 6

The nonsulfur photosynthetic bacteria use organic compounds as

Accepted Answer

A)  electron donors to reduce CO₂. 
B)  energy sources. 
C)  electron acceptors. 
D)  carbon sources. 
E)  oxygen sources. 
A)  electron donors to reduce CO₂. 
B)  energy sources. 
C)  electron acceptors. 
D)  carbon sources. 
E)  oxygen sources.

Question 7

Which of the following bacteria are responsible for more infections and more different kinds of infections?

Accepted Answer

A)  Pseudomonas 
B)  Streptococcus 
C)  Neisseria 
D)  Staphylococcus 
E)  Salmonella 
A)  Pseudomonas 
B)  Streptococcus 
C)  Neisseria 
D)  Staphylococcus 
E)  Salmonella

Question 8

Which of the following is NOT a characteristic of Neisseria?

Accepted Answer

A)  Some species are human pathogens. 
B)  cocci 
C)  gram-negative 
D)  oxidase-positive 
E)  requires X and V factors 
A)  Some species are human pathogens. 
B)  cocci 
C)  gram-negative 
D)  oxidase-positive 
E)  requires X and V factors

Question 9

Which of the following are found primarily in the intestines of humans?

Accepted Answer

A)  facultatively anaerobic gram-negative rods 
B)  gram-negative aerobic rods and cocci 
C)  endospore-forming rods 
D)  gram-positive cocci 
E)  aerobic, helical bacteria 
A)  facultatively anaerobic gram-negative rods 
B)  gram-negative aerobic rods and cocci 
C)  endospore-forming rods 
D)  gram-positive cocci 
E)  aerobic, helical bacteria

Question 10

The majority of bacterial species on Earth have not been successfully cultivated.

Accepted Answer

A) True 
 B)False

Question 11

All of the following bacteria are gram-positive. Which does NOT belong with the others?

Accepted Answer

A)  Gardnerella 
B)  Listeria 
C)  Corynebacterium 
D)  Actinomyces 
E)  Mycobacterium 
A)  Gardnerella 
B)  Listeria 
C)  Corynebacterium 
D)  Actinomyces 
E)  Mycobacterium

Question 12

Which of the following is NOT a characteristic of spirochetes?

Accepted Answer

A)  found in the human oral cavity 
B)  easily observed with brightfield microscopy 
C)  possess an axial filament 
D)  helical shape 
E)  gram-negative 
A)  found in the human oral cavity 
B)  easily observed with brightfield microscopy 
C)  possess an axial filament 
D)  helical shape 
E)  gram-negative

Question 13

Streptomyces differs from Actinomyces because Streptomyces

Accepted Answer

A)  makes antibiotics. 
B)  forms filaments. 
C)  is a strict aerobe. 
D)  is a bacterium. 
E)  produces conidia. 
A)  makes antibiotics. 
B)  forms filaments. 
C)  is a strict aerobe. 
D)  is a bacterium. 
E)  produces conidia.

Question 14

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

Accepted Answer

A)  Halococcus 
B)  Sulfolobus 
C)  Methanobacterium 
D)  Staphylococcus 
E)  Halobacterium 
A)  Halococcus 
B)  Sulfolobus 
C)  Methanobacterium 
D)  Staphylococcus 
E)  Halobacterium

Question 15

Which of the following statements about the causative agent of Rocky Mountain spotted fever is FALSE?

Accepted Answer

A)  It is transmitted by ticks. 
B)  It is gram-negative. 
C)  It is found in soil and water. 
D)  It is in the genus Rickettsia. 
E)  It is an intracellular parasite. 
A)  It is transmitted by ticks. 
B)  It is gram-negative. 
C)  It is found in soil and water. 
D)  It is in the genus Rickettsia. 
E)  It is an intracellular parasite.

Question 16

The deinococci can be categorized as extremophiles.

Accepted Answer

A) True 
 B)False

Question 17

Thiobacillus oxidizes inorganic sulfur compounds and reduces CO₂. This bacterium is a

Accepted Answer

A)  chemoheterotroph. 
B)  chemoautotroph. 
C)  gammaproteobacteria. 
D)  photoheterotroph. 
E)  photoautotroph. 
A)  chemoheterotroph. 
B)  chemoautotroph. 
C)  gammaproteobacteria. 
D)  photoheterotroph. 
E)  photoautotroph.

Question 18

Staphylococcus and Streptococcus can be easily differentiated in a laboratory by which one of the following?

Accepted Answer

A)  glucose fermentation 
B)  growth in high salt concentrations 
C)  ability to cause disease 
D)  cell shape 
E)  Gram stain reaction 
A)  glucose fermentation 
B)  growth in high salt concentrations 
C)  ability to cause disease 
D)  cell shape 
E)  Gram stain reaction

Question 19

Which of the following bacteria is gram-negative?

Accepted Answer

A)  Bacillus 
B)  Mycobacterium 
C)  Treponema 
D)  Corynebacterium 
E)  Staphylococcus 
A)  Bacillus 
B)  Mycobacterium 
C)  Treponema 
D)  Corynebacterium 
E)  Staphylococcus

Question 20

Burkholderia was reclassified from the gammaproteobacteria to the betaproteobacteria because

Accepted Answer

A)  it causes infections in cystic fibrosis patients. 
B)  it is a gram-negative rod. 
C)  its rRNA sequence is similar to that of Neisseria. 
D)  it causes melioidosis. 
E)  it grows in disinfectants. 
A)  it causes infections in cystic fibrosis patients. 
B)  it is a gram-negative rod. 
C)  its rRNA sequence is similar to that of Neisseria. 
D)  it causes melioidosis. 
E)  it grows in disinfectants.

Exam 11: The Prokaryotes: Domains Bacteria and Archaea

Both Beggiatoa and the purple sulfur bacteria use H2S. These bacteria differ in that Beggiatoa

The human body is typically free of archaeal species.

Photosynthetic organisms always produce oxygen gas as a metabolic byproduct.

Two distinguishing factors of the epsilonproteobacteria that they are motile and microaerophilic.

You have isolated an aerobic gram-positive, endospore-forming bacterium that grows well on nutrient agar. To which of the following groups does it most likely belong?

The nonsulfur photosynthetic bacteria use organic compounds as

Which of the following bacteria are responsible for more infections and more different kinds of infections?

Which of the following is NOT a characteristic of Neisseria?

Which of the following are found primarily in the intestines of humans?

The majority of bacterial species on Earth have not been successfully cultivated.

All of the following bacteria are gram-positive. Which does NOT belong with the others?

Which of the following is NOT a characteristic of spirochetes?

Streptomyces differs from Actinomyces because Streptomyces

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

Which of the following statements about the causative agent of Rocky Mountain spotted fever is FALSE?

The deinococci can be categorized as extremophiles.

Thiobacillus oxidizes inorganic sulfur compounds and reduces CO₂. This bacterium is a

Staphylococcus and Streptococcus can be easily differentiated in a laboratory by which one of the following?

Which of the following bacteria is gram-negative?

Burkholderia was reclassified from the gammaproteobacteria to the betaproteobacteria because

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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