Question 1

The most immediate result of destruction of a cell's ribosomes would be ________.

Accepted Answer

A)  material would not be able to cross the cell membrane
B)  protein synthesis would stop
C)  destruction of the cell's DNA
D)  formation of glycogen inclusions
E)  loss of the capsule

Question 2

An RN in a primary care office is caring for a 15-year-old male with severe gastrointestinal distress. The patient reports four days of diarrhea, vomiting, and intermittent fever. A stool culture was ordered in an attempt to identify a disease-causing pathogen. 
-The patient is diagnosed with Salmonella enterica serovar Enteritidis infection,a foodborne illness. The identification of the bacterial subspecies is important for developing his treatment plan and was possible due to ________.

Accepted Answer

A)  the analysis of antibody reactions against the pathogen
B)  the analysis of bacterial growth on a solid agar culture
C)  the analysis of the pathogen's Gram-stain
D)  the analysis of the pathogen's motility

Question 3

An RN in a primary care office is caring for a 15-year-old male with severe gastrointestinal distress. The patient reports four days of diarrhea, vomiting, and intermittent fever. A stool culture was ordered in an attempt to identify a disease-causing pathogen. 
-The laboratory report concludes that the diagnosis is salmonellosis caused by Salmonella infection. Remembering resources available for prokaryotic identification,the RN speculates that the laboratory technicians may have used

Accepted Answer

A)  Bergey's Manual of Systematic Bacteriology because rRNA analysis was required in the identification of this pathogen.
B)  Bergey's Manual of Systematic Bacteriology because its five volumes of information were necessary for phenotypic identification of this pathogen.
C)  Bergey's Manual of Determinative Bacteriology because they needed to fully understand the evolutionary background of the pathogen.
D)  Bergey's Manual of Determinative Bacteriology because it classifies prokaryotes based on phenotypic traits typically tested for in clinical settings.

Question 4

Chemical analysis of a bacterial cell structure detects calcium and dipicolinic acid.What is the identity of this structure?

Accepted Answer

A)  Cell wall
B)  Capsule
C)  Slime layer
D)  Nucleoid
E)  Endospore

Question 5

All of the following structures contribute to the ability of pathogenic bacteria to cause disease except the ________.

Accepted Answer

A)  inclusions
B)  fimbriae
C)  capsule
D)  slime layer
E)  LPS

Question 6

The typical definition of a species is one with distinct characteristics that produce viable offspring when mated with another organism in the same species.  Bacterial species cannot be defined as readily,due to the fact that

Accepted Answer

A)  they do not reproduce sexually by way of gametes.
B)  they can receive genetic material from others in their generation,regardless of species.
C)  they have a short generation time and evolve rapidly.
D)  All of the statements are true regarding the indistinct defining of bacterial species.

Question 7

Bacteria in the genus Mycoplasma and bacteria called L-forms lack cell walls.

Accepted Answer

A) True 
 B)False

Question 8

Cellular organisms without a true nucleus include bacteria and viruses.

Accepted Answer

A) True 
 B)False

Question 9

Two major structures that allow bacteria to adhere to surfaces are ________ and ________.

Accepted Answer

A)  pili; ribosomes
B)  fimbrae; capsules
C)  lipopolysaccharides; techoic acids
D)  actin filaments; phospholipid membrane(s) 
E)  actin filaments; ribosomes

Question 10

The transfer of genes during bacterial conjugation involves rigid,tubular appendages called ________.

Accepted Answer

A)  flagella
B)  cilia
C)  fimbriae
D)  periplasmic flagella (axial filaments) 
E)  sex pili

Question 11

Which statement below supports the argument that gram-negative cells are structurally weaker than gram-positive cells?

Accepted Answer

A)  Gram-negative cells have a thinner layer of peptidoglycan in their cell wall compared to gram-positive cells.
B)  Gram-positive cells contain teichoic acids,whereas gram-negative cells lack teichoic acids in their cell wall.
C)  The envelope of gram-negative cells comprises a hydrophobic outer membrane.
D)  Gram-negative cells contain lipopolysaccharides,the lipid component of which acts as an endotoxin.

Question 12

The term that refers to the presence of flagella over the cell surface is ________.

Accepted Answer

A)  amphitrichous
B)  atrichous
C)  lophotrichous
D)  monotrichous
E)  peritrichous

Question 13

A bacterial genus that has waxy mycolic acid in the cell walls is ________.

Accepted Answer

A)  Mycobacterium
B)  Mycoplasma
C)  Streptococcus
D)  Corynebacterium
E)  Salmonella

Question 14

The function of bacterial endospores is ________.

Accepted Answer

A)  to convert gaseous nitrogen to a usable form for plants
B)  reproduction and growth
C)  protection of genetic material during harsh conditions
D)  storage of excess cell materials
E)  to act as sites for photosynthesis

Question 15

The cell envelope or its parts can interact with human tissue and cause disease.

Accepted Answer

A) True 
 B)False

Question 16

Which term is not used to describe bacterial cell shapes?

Accepted Answer

A)  Coccus
B)  Tetrad
C)  Vibrio
D)  Rod
E)  Spirochete

Question 17

Gram-negative bacteria

Accepted Answer

A)  are more susceptible to antibiotics that target peptidoglycan than gram-positive organisms.
B)  are less susceptible to antibiotics that target peptidoglycan than gram-positive organisms.
C)  stain purple in the Gram stain.
D)  encompass all pathogens.
E)  None of the choices is correct.

Question 18

The site(s) for most ATP synthesis in bacterial cells is(are) the ________.

Accepted Answer

A)  ribosomes
B)  mitochondria
C)  cell wall
D)  inclusions
E)  cell membrane

Question 19

During the Gram stain,________ cells decolorize when the alcohol is applied.

Accepted Answer

A)  gram-positive
B)  gram-negative
C)  both gram-positive and -negative

Question 20

If you looked at a ________ under the microscope,you would likely see an irregular cluster of spherical cells.

Accepted Answer

A)  palisade
B)  sarcina
C)  staphylococcus
D)  streptococcus
E)  diplococcus

Exam 3: Bacteria and Archaea

Bacteria in the genus Mycoplasma and bacteria called L-forms lack cell walls.

Correct Answer
verified

The term that refers to the presence of flagella over the cell surface is ________.

Correct Answer
verified

Two major structures that allow bacteria to adhere to surfaces are and .

Correct Answer
verified

Chemical analysis of a bacterial cell structure detects calcium and dipicolinic acid.What is the identity of this structure?

Correct Answer
verified

During the Gram stain,________ cells decolorize when the alcohol is applied.

Correct Answer
verified

A bacterial genus that has waxy mycolic acid in the cell walls is ________.

Correct Answer
verified

Gram-negative bacteria

Correct Answer
verified

The most immediate result of destruction of a cell's ribosomes would be ________.

Correct Answer
verified

The cell envelope or its parts can interact with human tissue and cause disease.

Correct Answer
verified

If you looked at a ________ under the microscope,you would likely see an irregular cluster of spherical cells.

Correct Answer
verified

Correct Answer
verified

The function of bacterial endospores is ________.

Correct Answer
verified

The typical definition of a species is one with distinct characteristics that produce viable offspring when mated with another organism in the same species. Bacterial species cannot be defined as readily,due to the fact that

Correct Answer
verified

All of the following structures contribute to the ability of pathogenic bacteria to cause disease except the ________.

Correct Answer
verified

The site(s) for most ATP synthesis in bacterial cells is(are) the ________.

Correct Answer
verified

Correct Answer
verified

The transfer of genes during bacterial conjugation involves rigid,tubular appendages called ________.

Correct Answer
verified

Cellular organisms without a true nucleus include bacteria and viruses.

Correct Answer
verified

Which statement below supports the argument that gram-negative cells are structurally weaker than gram-positive cells?

Correct Answer
verified

Which term is not used to describe bacterial cell shapes?

Correct Answer
verified

Exam 3: Bacteria and Archaea

Bacteria in the genus Mycoplasma and bacteria called L-forms lack cell walls.

Correct AnswerverifiedShow Answer

The term that refers to the presence of flagella over the cell surface is ________.

Correct AnswerverifiedShow Answer

Two major structures that allow bacteria to adhere to surfaces are ________ and ________.

Correct AnswerverifiedShow Answer

Chemical analysis of a bacterial cell structure detects calcium and dipicolinic acid.What is the identity of this structure?

Correct AnswerverifiedShow Answer

During the Gram stain,________ cells decolorize when the alcohol is applied.

Correct AnswerverifiedShow Answer

A bacterial genus that has waxy mycolic acid in the cell walls is ________.

Correct AnswerverifiedShow Answer

Gram-negative bacteria

Correct AnswerverifiedShow Answer

The most immediate result of destruction of a cell's ribosomes would be ________.

Correct AnswerverifiedShow Answer

The cell envelope or its parts can interact with human tissue and cause disease.

Correct AnswerverifiedShow Answer

If you looked at a ________ under the microscope,you would likely see an irregular cluster of spherical cells.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

The function of bacterial endospores is ________.

Correct AnswerverifiedShow Answer

The typical definition of a species is one with distinct characteristics that produce viable offspring when mated with another organism in the same species. Bacterial species cannot be defined as readily,due to the fact that

Correct AnswerverifiedShow Answer

All of the following structures contribute to the ability of pathogenic bacteria to cause disease except the ________.

Correct AnswerverifiedShow Answer

The site(s) for most ATP synthesis in bacterial cells is(are) the ________.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

The transfer of genes during bacterial conjugation involves rigid,tubular appendages called ________.

Correct AnswerverifiedShow Answer

Cellular organisms without a true nucleus include bacteria and viruses.

Correct AnswerverifiedShow Answer

Which statement below supports the argument that gram-negative cells are structurally weaker than gram-positive cells?

Correct AnswerverifiedShow Answer

Which term is not used to describe bacterial cell shapes?

Correct AnswerverifiedShow Answer

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Two major structures that allow bacteria to adhere to surfaces are and .

Correct Answer
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