MICROBIOLOGY CHAPTER 11 TEST
BANK EXAM QUESTIONS AND
ANSWERS
Burkholderia was reclassified from the gammaproteobacteria to the
betaproteobacteria because
A) it grows in disinfectants.
B) it is a gram-negative rod.
C) it causes infections in cystic fibrosis patients.
D) it causes melioidosis.
E) its rRNA sequence is similar to that of Neisseria. - Answer-its rRNA sequence is
similar to that of Neisseria
The crab industry needs female crabs for growing more crabs. What bacterium might
be used to ensure development of female crabs and shrimp?
A) Acinetobacter
B) Gemmata
C) Neisseria
D) Pelagibacter
E) Wolbachia - Answer-wolbachia
Bacterial predators such as Bdellovibrio are members of the betaproteobacteria. -
Answer-FALSE
Two distinguishing factors of the epsilonproteobacteria that they are motile and
microaerophilic. - Answer-TRUE
Myxobacteria are classified as actinobacteria due to fungal-like lifestyle. - Answer-
FALSE
The Gram stain is not suitable for identifying members of the Archaea - Answer-
FALSE
The deinococci can be categorized as extremophiles. - Answer-TRUE
All gram-negative bacteria are classified as proteobacteria. - Answer-FALSE
The majority of bacterial species on Earth have not been successfully cultivated -
Answer-TRUE
Photosynthetic organisms always produce oxygen gas as a metabolic byproduct. -
Answer-FALSE
Currently, no members of Archaea have been linked to human disease. - Answer-
TRUE
The human body is typically free of archaeal species. - Answer-FALSE
, Which of the following are found primarily in the intestines of humans?
A) gram-negative aerobic rods and cocci
B) aerobic, helical bacteria
C) facultatively anaerobic gram-negative rods
D) gram-positive cocci
E) endospore-forming rods - Answer-facultatively anaerobic gram-negative rods
What is group "c." in the key shown in Figure 11.1?
A) bacteroidetes
B) chlamydiae
C) fusobacteria
D) planctomycetes
E) spirochaetes - Answer-spirochaetes
Which of the following is NOT a characteristic inherent of the non-endospore-forming
gram-positive rods?
A) are aerotolerant
B) carry out fermentative metabolism
C) display a branched filamentous morphology
D) nonpathogenic
E) lack cell walls - Answer-nonpathogenic
Which of the following is NOT a characteristic of Neisseria?
A) requires X and V factors
B) cocci
C) gram-negative
D) oxidase-positive
E) Some species are human pathogens. - Answer-requires X and V factors
Staphylococcus and Streptococcus can be easily differentiated in a laboratory by
which one of the following?
A) cell shape
B) Gram stain reaction
C) growth in high salt concentrations
D) ability to cause disease
E) glucose fermentation - Answer-growth in high salt concentrations
Which of the following genera is an anaerobic gram-negative rod?
A) Escherichia
B) Staphylococcus
C) Bacteroides
D) Treponema
E) Neisseria - Answer-bacteroides
Which of the following do you expect to be MOST resistant to high temperatures?
A) Bacillus subtilis
B) Eschericia coli
C) Neisseria gonorrhoeae
D) Staphylococcus aureus
E) Streptococcocus pyogenes - Answer-bacillus subtilis
BANK EXAM QUESTIONS AND
ANSWERS
Burkholderia was reclassified from the gammaproteobacteria to the
betaproteobacteria because
A) it grows in disinfectants.
B) it is a gram-negative rod.
C) it causes infections in cystic fibrosis patients.
D) it causes melioidosis.
E) its rRNA sequence is similar to that of Neisseria. - Answer-its rRNA sequence is
similar to that of Neisseria
The crab industry needs female crabs for growing more crabs. What bacterium might
be used to ensure development of female crabs and shrimp?
A) Acinetobacter
B) Gemmata
C) Neisseria
D) Pelagibacter
E) Wolbachia - Answer-wolbachia
Bacterial predators such as Bdellovibrio are members of the betaproteobacteria. -
Answer-FALSE
Two distinguishing factors of the epsilonproteobacteria that they are motile and
microaerophilic. - Answer-TRUE
Myxobacteria are classified as actinobacteria due to fungal-like lifestyle. - Answer-
FALSE
The Gram stain is not suitable for identifying members of the Archaea - Answer-
FALSE
The deinococci can be categorized as extremophiles. - Answer-TRUE
All gram-negative bacteria are classified as proteobacteria. - Answer-FALSE
The majority of bacterial species on Earth have not been successfully cultivated -
Answer-TRUE
Photosynthetic organisms always produce oxygen gas as a metabolic byproduct. -
Answer-FALSE
Currently, no members of Archaea have been linked to human disease. - Answer-
TRUE
The human body is typically free of archaeal species. - Answer-FALSE
, Which of the following are found primarily in the intestines of humans?
A) gram-negative aerobic rods and cocci
B) aerobic, helical bacteria
C) facultatively anaerobic gram-negative rods
D) gram-positive cocci
E) endospore-forming rods - Answer-facultatively anaerobic gram-negative rods
What is group "c." in the key shown in Figure 11.1?
A) bacteroidetes
B) chlamydiae
C) fusobacteria
D) planctomycetes
E) spirochaetes - Answer-spirochaetes
Which of the following is NOT a characteristic inherent of the non-endospore-forming
gram-positive rods?
A) are aerotolerant
B) carry out fermentative metabolism
C) display a branched filamentous morphology
D) nonpathogenic
E) lack cell walls - Answer-nonpathogenic
Which of the following is NOT a characteristic of Neisseria?
A) requires X and V factors
B) cocci
C) gram-negative
D) oxidase-positive
E) Some species are human pathogens. - Answer-requires X and V factors
Staphylococcus and Streptococcus can be easily differentiated in a laboratory by
which one of the following?
A) cell shape
B) Gram stain reaction
C) growth in high salt concentrations
D) ability to cause disease
E) glucose fermentation - Answer-growth in high salt concentrations
Which of the following genera is an anaerobic gram-negative rod?
A) Escherichia
B) Staphylococcus
C) Bacteroides
D) Treponema
E) Neisseria - Answer-bacteroides
Which of the following do you expect to be MOST resistant to high temperatures?
A) Bacillus subtilis
B) Eschericia coli
C) Neisseria gonorrhoeae
D) Staphylococcus aureus
E) Streptococcocus pyogenes - Answer-bacillus subtilis
