Question 1

Which of the following bacterial arrangements is the result of snapping division?

Accepted Answer

A)  palisades 
B)  sarcinae 
C)  strepto- 
D)  tetrads 
E)  staphylo- 
A)  palisades 
B)  sarcinae 
C)  strepto- 
D)  tetrads 
E)  staphylo-

Question 2

Unusual cellular extensions called prosthecae are associated with which of the following groups of proteobacteria?

Accepted Answer

A)  alpha 
B)  gamma 
C)  beta 
D)  epsilon 
E)  delta 
A)  alpha 
B)  gamma 
C)  beta 
D)  epsilon 
E)  delta

Question 3

Compare and contrast methanogens and methane oxidizers, including their roles in the environment.

Accepted Answer

Methanogens are archaea (in the phylum E

Question 4

A species of the genus Streptococcus is the leading cause of

Accepted Answer

A)  contaminated milk and meat. 
B)  food poisoning from rice. 
C)  "flesh- eating" bacterial infections. 
D)  tuberculosis. 
E)  urinary tract infections. 
A)  contaminated milk and meat. 
B)  food poisoning from rice. 
C)  "flesh- eating" bacterial infections. 
D)  tuberculosis. 
E)  urinary tract infections.

Question 5

Describe the similarities and differences observed among phototrophic bacteria.

Accepted Answer

All major groups of bacteria contain pho

Question 6

Low G + C content Gram- positive bacteria are

Accepted Answer

A)  in the phylum Firmicutes and include Clostridia and Mycoplasma. 
B)  Clostridia. 
C)  in the phylum Actinobacteria. 
D)  Mycoplasma. 
E)  in the phylum Firmicutes. 
A)  in the phylum Firmicutes and include Clostridia and Mycoplasma. 
B)  Clostridia. 
C)  in the phylum Actinobacteria. 
D)  Mycoplasma. 
E)  in the phylum Firmicutes.

Question 7

A flexible, spiral- shaped bacterium is called a

Accepted Answer

A)  spirochete. 
B)  spirillum. 
C)  vibrio. 
D)  coccobacillus. 
E)  sarcina. 
A)  spirochete. 
B)  spirillum. 
C)  vibrio. 
D)  coccobacillus. 
E)  sarcina.

Question 8

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

Accepted Answer

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

Question 9

The genus of pathogenic cocci responsible for a wide range of human disease and whose members grow in chains is (Staphylococcus/Streptococcus/Enterococcus).

Accepted Answer

The answer of The genus of pathogenic cocci responsible for...

Question 10

Which of the following statements regarding mycoplasmas is FALSE?

Accepted Answer

A)  They are pleomorphic. 
B)  They exhibit a "fried egg" appearance on solid media. 
C)  They are low G + C content bacteria. 
D)  They stain Gram positive. 
E)  They are the smallest free- living cells. 
A)  They are pleomorphic. 
B)  They exhibit a "fried egg" appearance on solid media. 
C)  They are low G + C content bacteria. 
D)  They stain Gram positive. 
E)  They are the smallest free- living cells.

Question 11

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

Accepted Answer

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

Question 12

What bacterial structure is responsible for separating the daughter DNA molecules after replication?

Accepted Answer

A)  cytoplasmic membrane 
B)  cytoskeleton 
C)  cross wall 
D)  spindle 
E)  fimbria 
A)  cytoplasmic membrane 
B)  cytoskeleton 
C)  cross wall 
D)  spindle 
E)  fimbria

Question 13

A field biologist finds what might be a new species of prokaryote in sewage sludge. It is an obligate anaerobe that metabolizes organic acids and requires hydrogen gas. It lacks a peptidoglycan cell wall. The new find may be a

Accepted Answer

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

Question 14

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- shap

Question 15

The process by which a bacterial cell produces an endospore is called (endosporing/sporulation/vegetation).

Accepted Answer

The answer of The process by which a bacterial cell...

Question 16

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

Accepted Answer

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

Question 17

Which of the following bacterial genera plays an important role in environmental nitrogen cycles?

Accepted Answer

A)  Rhizobium 
B)  Nitrobacter 
C)  Azospirillum 
D)  both Nitrobacter and Rhizobium 
E)  Nitrobacter, Rhizobium, and Azospirillum 
A)  Rhizobium 
B)  Nitrobacter 
C)  Azospirillum 
D)  both Nitrobacter and Rhizobium 
E)  Nitrobacter, Rhizobium, and Azospirillum

Question 18

Which of the following groups of bacteria is named for its resemblance to fungi?

Accepted Answer

A)  Staphylococcus 
B)  Lactobacillus 
C)  Clostridium 
D)  Corynebacterium 
E)  Actinomyces 
A)  Staphylococcus 
B)  Lactobacillus 
C)  Clostridium 
D)  Corynebacterium 
E)  Actinomyces

Question 19

Describe the major taxonomic divisions of prokaryotic organisms.

Accepted Answer

Bergey's Manual of Systematic Bacteriolo

Question 20

The archaea known as halophiles

Accepted Answer

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

Exam 11: Characterizing and Classifying Prokaryotes

Which of the following bacterial arrangements is the result of snapping division?

Unusual cellular extensions called prosthecae are associated with which of the following groups of proteobacteria?

Compare and contrast methanogens and methane oxidizers, including their roles in the environment.

A species of the genus Streptococcus is the leading cause of

Describe the similarities and differences observed among phototrophic bacteria.

Low G + C content Gram- positive bacteria are

A flexible, spiral- shaped bacterium is called a

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

The genus of pathogenic cocci responsible for a wide range of human disease and whose members grow in chains is (Staphylococcus/Streptococcus/Enterococcus).

Which of the following statements regarding mycoplasmas is FALSE?

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

What bacterial structure is responsible for separating the daughter DNA molecules after replication?

A field biologist finds what might be a new species of prokaryote in sewage sludge. It is an obligate anaerobe that metabolizes organic acids and requires hydrogen gas. It lacks a peptidoglycan cell wall. The new find may be a

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?

The process by which a bacterial cell produces an endospore is called (endosporing/sporulation/vegetation).

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

Which of the following bacterial genera plays an important role in environmental nitrogen cycles?

Which of the following groups of bacteria is named for its resemblance to fungi?

Describe the major taxonomic divisions of prokaryotic organisms.

The archaea known as halophiles

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 Disease, and Epidemiology

Innate Immunity

Adaptive Immunity

Immunization and Immune Testing

Immune Disorders

Pathogenic Gram-Positive Bacteria

Pathogenic Gram-Negative Cocci and Bacilli

Rickettsias, Chlamydias, Spirochetes, and Vibrios

Pathogenic Fungi

Parasitic Protozoa, Helminths, and Arthropod Vectors

Pathogenic Dna Viruses

Pathogenic Rna Viruses

Applied and Environmental Microbiology

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