Question 1

Staphylococcus and Streptococcus can usually be differentiated by microscope examination because of

Accepted Answer

A) cell shape. 
B) Gram stain reaction. 
C) cell arrangement. 
D) endospore formation. 
E) acid-fast reaction. 
A) cell shape. 
B) Gram stain reaction. 
C) cell arrangement. 
D) endospore formation. 
E) acid-fast reaction. C

Question 2

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

Accepted Answer

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

Question 3

Which of the following form conidiospores?

Accepted Answer

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

Question 4

Which of the following bacteria is gram-negative?

Accepted Answer

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

Question 5

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

Accepted Answer

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

Question 6

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

Question 7

Escherichia coli belongs to the

Accepted Answer

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

Question 8

Bacteroides

Accepted Answer

A) are found in gingival crevices. 
B) are found in the intestinal tract. 
C) are strict aerobes. 
D) are strict aerobes and found in gingival crevices. 
E) are found in gingival crevices and in the intestinal tract. 
A) are found in gingival crevices. 
B) are found in the intestinal tract. 
C) are strict aerobes. 
D) are strict aerobes and found in gingival crevices. 
E) are found in gingival crevices and in the intestinal tract.

Question 9

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

Accepted Answer

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

Question 10

The characteristic most notable regarding the mycoplasmas is that they

Accepted Answer

A) are aerotolerant. 
B) carry out fermentative metabolism. 
C) produce endospores. 
D) are nonpathogenic. 
E) lack cell walls. 
A) are aerotolerant. 
B) carry out fermentative metabolism. 
C) produce endospores. 
D) are nonpathogenic. 
E) lack cell walls.

Question 11

Chlamydia differ from most other bacteria in that they

Accepted Answer

A) have a developmental cycle. 
B) lack a cell wall. 
C) are acid-fast. 
D) produce endospores. 
E) are photosynthetic. 
A) have a developmental cycle. 
B) lack a cell wall. 
C) are acid-fast. 
D) produce endospores. 
E) are photosynthetic.

Question 12

Which of the following is NOT a characteristic of spirochetes?

Accepted Answer

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

Question 13

Borrelia is classified as a spirochete because it

Accepted Answer

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

Question 14

Figure 11.1  
What is group "c." in the key shown in Figure 11.1?

Accepted Answer

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

Question 15

Rickettsias differ from chlamydias in that rickettsias

Accepted Answer

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

Question 16

All gram-negative bacteria are classified as proteobacteria.

Accepted Answer

A) True 
 B)False

Question 17

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

Accepted Answer

A) uses H₂S for an energy source. 
B) uses H₂S for a carbon source. 
C) uses light energy. 
D) can photosynthesize. 
E) is gram negative. 
A) uses H₂S for an energy source. 
B) uses H₂S for a carbon source. 
C) uses light energy. 
D) can photosynthesize. 
E) is gram negative.

Question 18

You have isolated a gram-positive rod.What should you do next?

Accepted Answer

A) Gram stain 
B) lactose fermentation 
C) endospore stain 
D) flagella stain 
E) enterotube 
A) Gram stain 
B) lactose fermentation 
C) endospore stain 
D) flagella stain 
E) enterotube

Question 19

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

Accepted Answer

A) True 
 B)False

Question 20

Streptomyces differs from Actinomyces because Streptomyces

Accepted Answer

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

Exam 11: The Prokaryotes: Domains Bacteria and Archaea

Staphylococcus and Streptococcus can usually be differentiated by microscope examination because of

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

Which of the following form conidiospores?

Which of the following bacteria is gram-negative?

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

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

Bacteroides

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

The characteristic most notable regarding the mycoplasmas is that they

Chlamydia differ from most other bacteria in that they

Which of the following is NOT a characteristic of spirochetes?

Borrelia is classified as a spirochete because it

Figure 11.1 What is group "c." in the key shown in Figure 11.1?

Rickettsias differ from chlamydias in that rickettsias

All gram-negative bacteria are classified as proteobacteria.

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

You have isolated a gram-positive rod.What should you do next?

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

Streptomyces differs from Actinomyces because Streptomyces

The Microbial World and You

Chemical Principles

Observing Microorganisms Through a Microscope

Functional Anatomy of Prokaryotic and Eukaryotic

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

Innate Immunity: Nonspecific Defenses of the Host

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 Diseases of the Urinary and Reproductive Systems

Environmental Microbiology

Applied and Industrial Microbiology

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