Question 1

The chemical components of ribosomes are proteins and ________.

Accepted Answer

A)  mRNA
B)  tRNA
C)  rRNA
D)  All of the choices are correct.
E)  None of the choices is correct.F) A) and B)
G) B) and D)

Question 2

________ Manual of Systematic Bacteriology is a manual of bacterial descriptions and classifications.

Accepted Answer

A)  Pasteur's
B)  Lister's
C)  Bergey's
D)  Leeuwenhoek's
E)  Koch'sF) D) and E)
G) B) and C)

Question 3

Spirochetes have a twisting and flexing locomotion due to appendages called ________.

Accepted Answer

A)  flagella
B)  cilia
C)  fimbriae
D)  periplasmic flagella (axial filaments) 
E)  sex piliF) D) and E)
G) A) and E)

Question 4

Endospores are ________.

Accepted Answer

A)  metabolically inactive
B)  resistant to heat and chemical destruction
C)  resistant to destruction by radiation
D)  living structures
E)  All of the choices are correct.F) B) and C)
G) B) and D)

Question 5

A triage nurse in the ER begins the assessment of an elderly patient complaining of bloody diarrhea and severe stomach cramps. The patient has a fever of 104oF as well, and is showing signs of dehydration. IV fluids are administered while further workup of the patient continues.
-Testing is performed on the specimen in the laboratory,including the Gram stain. This test separates bacteria into two broad classes: gram-positive and gram-negative. Which step in the staining process is the differential step,for it only acts upon one type of cell?

Accepted Answer

A)  Addition of Gram's iodine (mordant) 
B)  Addition of crystal violet
C)  Decolorization with alcohol
D)  Addition of safranin (counterstain) E) A) and D)
F) All of the above

Question 6

A 3-year-old patient presents to the ER after a sudden onset of high fever and chills, a productive cough, and shortness of breath. The parents indicate that the child had been healthy up until that morning. An initial assessment of the child shows an elevated temperature (103oF) , rapid pulse rate (140 bpm) , and low oxygen saturation level (82%) . Supplemental oxygen and acetaminophen are administered immediately, and specimens are obtained from the patient for microbial analysis.
-Further microscopic analysis of negatively stained specimens reveals a colorless ring around each of the spherical cells against a dark background. This clearing indicates that the pathogen possesses which structure(s) ?

Accepted Answer

A)  Endospores
B)  A capsule
C)  A nucleoid
D)  PiliE) A) and D)
F) A) and C)

Question 7

Halobacterium salinarium lives in and requires salt.This is an example of an archaeabacterium described as a(n) ________.

Accepted Answer

A)  osmophile
B)  halophile
C)  thermophile
D)  psychrophile
E)  methanogenF) A) and D)
G) A) and C)

Question 8

Which of the following is not a division of bacteria and archaea according to Bergey's Manual of Determinative Bacteriology?

Accepted Answer

A)  Gracilicutes
B)  Scotobacteria
C)  Firmicutes
D)  Tenericutes
E)  MendosicutesF) A) and E)
G) B) and D)

Question 9

The slime layer provides bacteria greater pathogenicity as compared to the capsule.

Accepted Answer

A) True 
 B)False

Question 10

The term diplococcus refers to an irregular cluster of spherical bacterial cells.

Accepted Answer

A) True 
 B)False

Question 11

Which of the following statements is not true regarding the differences between bacteria,archaea,and eukaryotes?

Accepted Answer

A)  The cell walls of bacteria and archaea both contain the complex macromolecule peptidoglycan,whereas only the organisms in kingdom Plantae contain cell walls,which are made of cellulose.
B)  Bacteria and archaea have circular chromosomes in a nucleoid region whereas eukaryotes have linear chromosomes that are enclosed in a nuclear membrane.
C)  Flagella are found on bacteria,archaea and eukaryotes yet they all vary in structure.
D)  Ribosomal RNA sequencing revealed that the structure of the ribosomal subunits in archaea more closely resemble those of eukaryotes than bacteria.E) A) and C)
F) B) and C)

Question 12

The cell ________ can be composed of three layers: the cytoplasmic membrane,the cell wall,and the outer membrane.

Accepted Answer

A)  glycocalyx
B)  envelope
C)  pathogenic package
D)  slime coat
E)  None of the choices is correct.F) C) and D)
G) B) and E)

Question 13

Spirochetes are able to move due to ________.

Accepted Answer

A)  a periplasmic flagellum
B)  a membrane-bound flagellum
C)  cilia serving as walking feet
D)  pseudopods
E)  fimbriaeF) B) and D)
G) A) and D)

Question 14

A bacterial cell exhibiting chemotaxis probably has ________.

Accepted Answer

A)  fimbriae
B)  a capsule
C)  thylakoids
D)  flagella
E)  metachromatic granulesF) A) and E)
G) B) and C)

Question 15

Movement of a cell toward a chemical stimulus is termed ________.

Accepted Answer

A)  positive phototaxis
B)  negative phototaxis
C)  positive chemotaxis
D)  negative chemotaxis
E)  a tumbleF) C) and E)
G) C) and D)

Question 16

Bacterial cells could have any of the following appendages except ________.

Accepted Answer

A)  flagella
B)  cilia
C)  fimbriae
D)  periplasmic flagella (axial filaments) 
E)  sex piliF) C) and D)
G) A) and B)

Question 17

A triage nurse in the ER begins the assessment of an elderly patient complaining of bloody diarrhea and severe stomach cramps. The patient has a fever of 104oF as well, and is showing signs of dehydration. IV fluids are administered while further workup of the patient continues.
-Specimen collection from the patient is ordered for microbial analysis in the hospital laboratory. Based upon the patient's symptoms,which of the following samples would the RN expect to be ordered for collection?

Accepted Answer

A)  Aseptic collection of cerebrospinal fluid
B)  Clean catch urine sample
C)  Stool sample
D)  Aseptic collection of sputumE) B) and C)
F) C) and D)

Question 18

Which of the following species of bacteria is not closely related to the others?

Accepted Answer

A)  Staphylococcus aureus
B)  Staphylococcus epidermidis
C)  Staphylococcus saprophyticus
D)  Escherichia coli
E)  Staphylococcus capitisF) A) and B)
G) None of the above

Question 19

Plasmids ________.

Accepted Answer

A)  are found in all bacteria
B)  are essential for growth and metabolism
C)  cannot be passed between organisms
D)  cannot be passed on to progeny
E)  are often the site of pathogenic genesF) All of the above
G) A) and B)

Question 20

Lysozyme is most effective against ________.

Accepted Answer

A)  gram-negative organisms
B)  gram-positive organisms
C)  mycoplasmas
D)  cyanobacteria
E)  archaeaF) B) and C)
G) A) and B)

Exam 3: Bacteria and Archaea

A bacterial cell exhibiting chemotaxis probably has ________.

Correct Answer
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Correct Answer
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Plasmids ________.

Correct Answer
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________ Manual of Systematic Bacteriology is a manual of bacterial descriptions and classifications.

Correct Answer
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Bacterial cells could have any of the following appendages except ________.

Correct Answer
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Lysozyme is most effective against ________.

Correct Answer
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Spirochetes are able to move due to ________.

Correct Answer
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The cell ________ can be composed of three layers: the cytoplasmic membrane,the cell wall,and the outer membrane.

Correct Answer
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Endospores are ________.

Correct Answer
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Which of the following statements is not true regarding the differences between bacteria,archaea,and eukaryotes?

Correct Answer
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Which of the following is not a division of bacteria and archaea according to Bergey's Manual of Determinative Bacteriology?

Correct Answer
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Correct Answer
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The chemical components of ribosomes are proteins and ________.

Correct Answer
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Which of the following species of bacteria is not closely related to the others?

Correct Answer
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Halobacterium salinarium lives in and requires salt.This is an example of an archaeabacterium described as a(n) ________.

Correct Answer
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The slime layer provides bacteria greater pathogenicity as compared to the capsule.

Correct Answer
verified

The term diplococcus refers to an irregular cluster of spherical bacterial cells.

Correct Answer
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Spirochetes have a twisting and flexing locomotion due to appendages called ________.

Correct Answer
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Movement of a cell toward a chemical stimulus is termed ________.

Correct Answer
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Correct Answer
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Exam 3: Bacteria and Archaea

A bacterial cell exhibiting chemotaxis probably has ________.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Plasmids ________.

Correct AnswerverifiedShow Answer

________ Manual of Systematic Bacteriology is a manual of bacterial descriptions and classifications.

Correct AnswerverifiedShow Answer

Bacterial cells could have any of the following appendages except ________.

Correct AnswerverifiedShow Answer

Lysozyme is most effective against ________.

Correct AnswerverifiedShow Answer

Spirochetes are able to move due to ________.

Correct AnswerverifiedShow Answer

The cell ________ can be composed of three layers: the cytoplasmic membrane,the cell wall,and the outer membrane.

Correct AnswerverifiedShow Answer

Endospores are ________.

Correct AnswerverifiedShow Answer

Which of the following statements is not true regarding the differences between bacteria,archaea,and eukaryotes?

Correct AnswerverifiedShow Answer

Which of the following is not a division of bacteria and archaea according to Bergey's Manual of Determinative Bacteriology?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

The chemical components of ribosomes are proteins and ________.

Correct AnswerverifiedShow Answer

Which of the following species of bacteria is not closely related to the others?

Correct AnswerverifiedShow Answer

Halobacterium salinarium lives in and requires salt.This is an example of an archaeabacterium described as a(n) ________.

Correct AnswerverifiedShow Answer

The slime layer provides bacteria greater pathogenicity as compared to the capsule.

Correct AnswerverifiedShow Answer

The term diplococcus refers to an irregular cluster of spherical bacterial cells.

Correct AnswerverifiedShow Answer

Spirochetes have a twisting and flexing locomotion due to appendages called ________.

Correct AnswerverifiedShow Answer

Movement of a cell toward a chemical stimulus is termed ________.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

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