Question 1

Strains of Staphylococcus aureus that are resistant to __________ generally cannot be treated with antibiotic therapy.

Accepted Answer

The answer of Strains of Staphylococcus aureus that are resistant...

Question 2

Many bacteria that were originally classified in the genus Streptococcus are now placed into 2 new genera,Enterococcus and Lactococcus.

Accepted Answer

A) True 
 B)False

Question 3

Abscesses and boils are often associated with

Accepted Answer

A)  Streptococcus mutans.
B)  Staphylococcus aureus.
C)  Lactococcus lactis.
D)  Streptococcus pneumoniae.E) None of the above
F) A) and B)

Question 4

Which of the following is associated with dental caries?

Accepted Answer

A)  Streptococcus pneumoniae
B)  Streptococcus mutans
C)  Enterococcus faecalis
D)  Lactococcus lactisE) All of the above
F) B) and C)

Question 5

Although lacking a TCA cycle and a respiratory chain,__________ can divide with a generation time of eight to ten minutes when growing in a human host.

Accepted Answer

A)  Streptococcus pyogenes
B)  Staphylococcus aureus
C)  Clostridium perfringens
D)  no bacterium can divide that fastE) A) and B)
F) None of the above

Question 6

Members of the genus Staphylococcus are normally associated with

Accepted Answer

A)  skin.
B)  skin glands.
C)  mucous membranes.
D)  all of the choicesE) All of the above
F) C) and D)

Question 7

Which of the following is a normal skin resident?

Accepted Answer

A)  Staphylococcus epidermidis
B)  Staphylococcus aureus
C)  Streptococcus mutans
D)  Clostridium perfringensE) B) and D)
F) A) and B)

Question 8

Which of the following genera produce numerous useful antibiotics?

Accepted Answer

A)  Bacillus
B)  Clostridium
C)  Leuconostoc
D)  all of the choicesE) A) and C)
F) None of the above

Question 9

Staphylococcus aureus produces the enzyme __________,which causes blood plasma to clot.

Accepted Answer

The answer of Staphylococcus aureus produces the enzyme __________,which causes...

Question 10

Staphylococcus aureus is a common cause of food poisoning in the US.

Accepted Answer

A) True 
 B)False

Question 11

Which of the following is responsible for causing gas gangrene?

Accepted Answer

A)  Clostridium perfringens
B)  Clostridium botulinum
C)  Clostridium acetobutylicum
D)  Clostridium tetaniE) C) and D)
F) A) and D)

Question 12

Endospore-forming gram-positive bacteria are found primarily in __________ habitats.

Accepted Answer

A)  soil
B)  freshwater
C)  marine
D)  all of the choicesE) A) and B)
F) A) and C)

Question 13

Staphylococcus aureus appears to be very adept at acquiring virulence and antibiotic resistance genes from other bacteria.

Accepted Answer

A) True 
 B)False

Question 14

Clostridium perfringens causes which of the following?

Accepted Answer

A)  gas gangrene
B)  pneumonia
C)  fire blight disease of pears
D)  tuberculosisE) A) and D)
F) All of the above

Question 15

Thermoactinomyces vulgaris is the causative agent for

Accepted Answer

A)  cystic fibrosis.
B)  farmer's lung disease.
C)  primary atypical pneumonia.
D)  vaginitis.E) B) and D)
F) A) and C)

Question 16

Gene duplications in Bacillus subtilis have resulted in a large gene family that encodes __________ transporters.

Accepted Answer

The answer of Gene duplications in Bacillus subtilis have resulted...

Question 17

Members of the genus Thermoactinomyces

Accepted Answer

A)  produce spores on its hyphae.
B)  are commonly found in damp haystacks and compost piles.
C)  are thermophiles.
D)  all of the choicesE) A) and B)
F) A) and C)

Question 18

Desulfotomaculum are gram-positive,but stain gram-negative because their cell walls have a lower than normal concentration of peptidoglycan.

Accepted Answer

A) True 
 B)False

Question 19

Lactobacilli are alkalophilic,preferring conditions that are slightly alkaline for optimal growth.

Accepted Answer

A) True 
 B)False

Question 20

Lactobacillus grows optimally at __________ pH.

Accepted Answer

A)  slightly acidic
B)  neutral
C)  slightly alkaline
D)  very acidicE) C) and D)
F) None of the above

Exam 23: Firmicutes: the Low G 1 C Gram-Positive Bacteria

Which of the following genera produce numerous useful antibiotics?

Correct AnswerverifiedShow Answer

Staphylococcus aureus appears to be very adept at acquiring virulence and antibiotic resistance genes from other bacteria.

Correct AnswerverifiedShow Answer

Lactobacilli are alkalophilic,preferring conditions that are slightly alkaline for optimal growth.

Correct AnswerverifiedShow Answer

Endospore-forming gram-positive bacteria are found primarily in __________ habitats.

Correct AnswerverifiedShow Answer

Desulfotomaculum are gram-positive,but stain gram-negative because their cell walls have a lower than normal concentration of peptidoglycan.

Correct AnswerverifiedShow Answer

Members of the genus Thermoactinomyces

Correct AnswerverifiedShow Answer

Strains of Staphylococcus aureus that are resistant to __________ generally cannot be treated with antibiotic therapy.

Correct AnswerverifiedShow Answer

Which of the following is a normal skin resident?

Correct AnswerverifiedShow Answer

Which of the following is responsible for causing gas gangrene?

Correct AnswerverifiedShow Answer

Abscesses and boils are often associated with

Correct AnswerverifiedShow Answer

Members of the genus Staphylococcus are normally associated with

Correct AnswerverifiedShow Answer

Many bacteria that were originally classified in the genus Streptococcus are now placed into 2 new genera,Enterococcus and Lactococcus.

Correct AnswerverifiedShow Answer

Staphylococcus aureus is a common cause of food poisoning in the US.

Correct AnswerverifiedShow Answer

Clostridium perfringens causes which of the following?

Correct AnswerverifiedShow Answer

Lactobacillus grows optimally at __________ pH.

Correct AnswerverifiedShow Answer

Staphylococcus aureus produces the enzyme __________,which causes blood plasma to clot.

Correct AnswerverifiedShow Answer

Gene duplications in Bacillus subtilis have resulted in a large gene family that encodes __________ transporters.

Correct AnswerverifiedShow Answer

Thermoactinomyces vulgaris is the causative agent for

Correct AnswerverifiedShow Answer

Which of the following is associated with dental caries?

Correct AnswerverifiedShow Answer

Although lacking a TCA cycle and a respiratory chain,__________ can divide with a generation time of eight to ten minutes when growing in a human host.

Correct AnswerverifiedShow Answer

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