Question 1

Staphylococcus aureus is known to cause ALL of the following diseases EXCEPT

Accepted Answer

A)  acne. 
B)  arthritis. 
C)  boils. 
D)  dental caries. 
A)  acne. 
B)  arthritis. 
C)  boils. 
D)  dental caries.

Question 2

Except that they are not produced in the cytoplasm,conidia produced by Streptomyces spp.are chemically quite similar in composition to endospores produced by Bacillus spp.

Accepted Answer

A) True 
 B)False

Question 3

Which characteristic is NOT associated with Vibrio spp.?

Accepted Answer

A)  aquatic 
B)  gliding motility 
C)  gram-negative 
D)  pathogenic 
A)  aquatic 
B)  gliding motility 
C)  gram-negative 
D)  pathogenic

Question 4

During stationary phase,group members of Serratia produce prodigiosins that contain pyrrole.Considering its structural relatedness to other pyrrole-containing molecules of known function (e.g.,chlorophylls,bacteriochlorophylls,porphyrins),propose a potential ecological role for these compounds in soil where they are involved in something other than photosynthesis.

Accepted Answer

Answers will vary but should focus on el

Question 5

Which of the following is NOT a trait of the Planctomycetes?

Accepted Answer

A)  undergo budding cell division 
B)  have intracellular compartmentalization 
C)  lack peptidoglycan 
D)  undergo plant symbiosis 
A)  undergo budding cell division 
B)  have intracellular compartmentalization 
C)  lack peptidoglycan 
D)  undergo plant symbiosis

Question 6

Chlamydiae are MOST commonly transmitted throughout environments by insects.

Accepted Answer

A) True 
 B)False

Question 7

Cytophaga columnaris causes columnaris (or "cottonmouth")disease in fish such as salmon.Based on the taxonomic group this species is a part of,predict some of the activities this bacterium has during infection of fish.Also mention a related taxon that likely has some of the same functions and another taxon that does not.

Accepted Answer

Because C.columnaris is a member of the

Question 8

Which taxon is NOT gram-positive?

Accepted Answer

A)  Actinobacteria 
B)  Firmicutes 
C)  Sphingobacteria 
D)  Streptococcus 
A)  Actinobacteria 
B)  Firmicutes 
C)  Sphingobacteria 
D)  Streptococcus

Question 9

A pink-pigmented facultative methylotrophic bacterium is LEAST likely to be a classified as a member of

Accepted Answer

A)  Rhizobiales. 
B)  Rhodobacter. 
C)  Methylobacterium. 
D)  Proteobacteria. 
A)  Rhizobiales. 
B)  Rhodobacter. 
C)  Methylobacterium. 
D)  Proteobacteria.

Question 10

Based on oxygen requirements and metabolic strategies,isolating an epsilonproteobacterium from ________ would likely be MOST fruitful.

Accepted Answer

A)  anoxic and sulfate-rich waters 
B)  a plant's rhizosphere 
C)  sulfate-rich anoxic-oxic interfaces 
D)  sulfide-rich soils 
A)  anoxic and sulfate-rich waters 
B)  a plant's rhizosphere 
C)  sulfate-rich anoxic-oxic interfaces 
D)  sulfide-rich soils

Question 11

Antibiotics that disrupt or halt cell wall biosynthesis are actually ineffective at harming growth of mycoplasmas.

Accepted Answer

A) True 
 B)False

Question 12

Isolating a bacterium of the ________ class would be of high impact due to it only having one cultured representative.

Accepted Answer

A)  Alphaproteobacteria 
B)  Betaproteobacteria 
C)  Epsilonproteobacteria 
D)  Zetaproteobacteria 
A)  Alphaproteobacteria 
B)  Betaproteobacteria 
C)  Epsilonproteobacteria 
D)  Zetaproteobacteria

Question 13

In comparison to bacteria that do have cell walls,________ is a consequence of mycoplasmas lacking a cell wall.

Accepted Answer

A)  larger cytoplasmic volume 
B)  frequent existence as obligate symbionts 
C)  higher sensitivity to osmotic lysis 
D)  inability to survive protoplasts lysing conditions 
A)  larger cytoplasmic volume 
B)  frequent existence as obligate symbionts 
C)  higher sensitivity to osmotic lysis 
D)  inability to survive protoplasts lysing conditions

Question 14

Betaproteobacteria is a functionally diverse group that primarily uses anaerobic metabolisms.

Accepted Answer

A) True 
 B)False

Question 15

Sulfur metabolism is a common trait in Deltaproteobacteria.

Accepted Answer

A) True 
 B)False

Question 16

Describe the stages chlamydia cells go through during infection of human cells and the significance for the key steps in the cycle.

Accepted Answer

Figure 15.44 illustrates all stages cell

Question 17

Which of the following is NOT a trait of rickettsias?

Accepted Answer

A)  They are obligate intracellular parasites. 
B)  They lack cell walls. 
C)  They have not been cultivated in the absence of host cells. 
D)  Both the host and parasite are required in order to be alive and metabolically active. 
A)  They are obligate intracellular parasites. 
B)  They lack cell walls. 
C)  They have not been cultivated in the absence of host cells. 
D)  Both the host and parasite are required in order to be alive and metabolically active.

Question 18

A gram-negative,polarly flagellated,aerobic bacillus-shaped bacterium that can degrade a large variety or aromatic compounds is likely a(n)

Accepted Answer

A)  actinobacterium. 
B)  enteric. 
C)  pseudomonad. 
D)  sphingomonad. 
A)  actinobacterium. 
B)  enteric. 
C)  pseudomonad. 
D)  sphingomonad.

Question 19

Which phylum harbors the MOST functional diversity observed and also has the MOST cultured representatives?

Accepted Answer

A)  Actinobacteria 
B)  Bacteroidetes 
C)  Firmicutes 
D)  Proteobacteria 
A)  Actinobacteria 
B)  Bacteroidetes 
C)  Firmicutes 
D)  Proteobacteria

Question 20

Compare and contrast the human pathogens and non-pathogens in Clostridium.Propose a reason for why this differentiation is challenging to assay in the laboratory (NOT on living eukaryotic animal models).

Accepted Answer

Irrespective of their pathogenicity is t

Exam 15: Diversity of Bacteria

Staphylococcus aureus is known to cause ALL of the following diseases EXCEPT

Except that they are not produced in the cytoplasm,conidia produced by Streptomyces spp.are chemically quite similar in composition to endospores produced by Bacillus spp.

Which characteristic is NOT associated with Vibrio spp.?

Which of the following is NOT a trait of the Planctomycetes?

Chlamydiae are MOST commonly transmitted throughout environments by insects.

Which taxon is NOT gram-positive?

A pink-pigmented facultative methylotrophic bacterium is LEAST likely to be a classified as a member of

Based on oxygen requirements and metabolic strategies,isolating an epsilonproteobacterium from ________ would likely be MOST fruitful.

Antibiotics that disrupt or halt cell wall biosynthesis are actually ineffective at harming growth of mycoplasmas.

Isolating a bacterium of the ________ class would be of high impact due to it only having one cultured representative.

In comparison to bacteria that do have cell walls,________ is a consequence of mycoplasmas lacking a cell wall.

Betaproteobacteria is a functionally diverse group that primarily uses anaerobic metabolisms.

Sulfur metabolism is a common trait in Deltaproteobacteria.

Describe the stages chlamydia cells go through during infection of human cells and the significance for the key steps in the cycle.

Which of the following is NOT a trait of rickettsias?

A gram-negative,polarly flagellated,aerobic bacillus-shaped bacterium that can degrade a large variety or aromatic compounds is likely a(n)

Which phylum harbors the MOST functional diversity observed and also has the MOST cultured representatives?

Compare and contrast the human pathogens and non-pathogens in Clostridium.Propose a reason for why this differentiation is challenging to assay in the laboratory (NOT on living eukaryotic animal models).

Microorganisms and Microbiology

Microbial Cell Structure and Function

Microbial Metabolism

Molecular Biology

Microbial Growth and Control

Microbial Genomics

Metabolic Regulation

Viruses and Virology

Viral Genomes and Diversity

Genetics of Bacteria and Archaea

Genetic Engineering and Biotechnology

Microbial Evolution and Systematics

Metabolic Diversity of Microorganisms

Functional Diversity of Bacteria

Diversity of Archaea

Diversity of Eukaryotic Microorganisms

Methods in Microbial Ecology

Microbial Ecosystems

Nutrient Cycles

Microbiology of the Built Environment

Microbial Symbioses

Microbial Interactions With Humans

Immunity and Host Defense

Immune Mechanisms

Molecular Immunology

Diagnostic Microbiology

Epidemiology

Person-To-Person Bacterial and Viral Diseases

Vectorborne and Soilborne Bacterial and Viral Diseases

Water and Food As Vehicles of Bacterial Diseases

Eukaryotic Pathogens: Fungal and Parasitic Diseases

Filters