Question 1

Which of the following is not a characteristic of spirochetes?

Accepted Answer

A)   Gram- negative
B)   Easily observed with brightfield microscopy
C)   Possess an axial filament
D)   Helical shape
E)   Difficult to culture in vitroF) D) and E)
G) B) and E)

Question 2

All of the following are gram- positive. Which does not belong with the others?

Accepted Answer

A)   Listeria
B)   Corynebacterium
C)   Mycobacterium
D)   Actinomyces
E)   BacillusF) All of the above
G) A) and C)

Question 3

Streptomyces differs from Actinomyces because Streptomyces

Accepted Answer

A)   Is aerobic.
B)   Produces conidia.
C)   Forms filaments.
D)   Makes antibiotics.
E)   None of the above.F) C) and D)
G) None of the above

Question 4

Which of the following lacks a cell wall?

Accepted Answer

A)   Clostridium
B)   Mycobacterium
C)   Nocardia
D)   Mycoplasma
E)   BorreliaF) A) and B)
G) A) and C)

Question 5

Salmonella, Shigella, Yersinia, and Serratia are all

Accepted Answer

A)   Gram- positive aerobic cocci.
B)   Pathogens.
C)   Gram- negative facultatively anaerobic rods.
D)   Fermentative.
E)   None of the above.F) A) and C)
G) A) and D)

Question 6

Which of the following is not an enteric?

Accepted Answer

A)   Enterobacter
B)   Escherichia
C)   Salmonella
D)   Campylobacter
E)   ShigellaF) C) and D)
G) None of the above

Question 7

What should you do if you suspect a patient has tuberculosis?

Accepted Answer

A)   Look at a wet mount.
B)   An acid- fast stain.
C)   A Gram stain.
D)   Check for motility.E) A) and B)
F) B) and C)

Question 8

Which of the following is not a characteristic of Neisseria?

Accepted Answer

A)   Oxidase- positive
B)   Cocci
C)   Requires X and V factors
D)   Gram- negative
E)   None of the aboveF) A) and B)
G) A) and C)

Question 9

You have isolated a bacterium that grows in a medium containing only inorganic nutrients. Ammonia is oxidized to nitrate ion. This bacterium is

Accepted Answer

A)   Using anaerobic respiration.
B)   A chemoautotroph.
C)   A photoheterotroph.
D)   A photoautotroph
E)   Gram- negative.F) A) and E)
G) B) and C)

Question 10

Which of the following does not belong with the others?

Accepted Answer

A)   Methanobacterium
B)   Sulfolobus
C)   Staphylococcus
D)   Halobacterium
E)   HalococcusF) A) and C)
G) None of the above

Question 11

Which of the following pairs is mismatched?

Accepted Answer

A)   Mycobacteria - acid- fast
B)   Aerobic, helical bacteria - gram- negative
C)   Spirochete - axial filament
D)   Enterics - gram- negative
E)   None of the aboveF) All of the above
G) A) and B)

Question 12

Which of the following are found primarily in the intestines of humans?

Accepted Answer

A)   Facultatively anaerobic gram- negative rods
B)   Aerobic, helical bacteria
C)   Gram- positive cocci
D)   Gram- negative aerobic rods and cocci
E)   None of the aboveF) C) and E)
G) B) and D) A

Question 13

The nonsulfur photosynthetic bacteria use organic compounds as

Accepted Answer

A)   Electron donors to reduce CO?.
B)   Energy sources.
C)   Carbon sources.
D)   Electron acceptors.
E)   All of the above.F) A) and C)
G) B) and D)

Question 14

You have isolated an aerobic gram- positive, endospore- forming bacterium that grows wells on nutrient agar. To which of the following groups does it most likely belong?

Accepted Answer

A)   Deltaproteobacteria
B)   Phototrphic bacteria
C)   Bacillales
D)   Gammaproteobacteria
E)   Can't tellF) A) and B)
G) C) and D) C

Question 15

Requirements for X and V factors are used to identify

Accepted Answer

A)   Neisseria.
B)   Haemophilus.
C)   Staphylococcus.
D)   Escherichia.
E)   None of the above.F) B) and E)
G) None of the above

Question 16

Escherichia coli belongs to the

Accepted Answer

A)   Actinomycetes.
B)   Spirochetes.
C)   Green sulfur bacteria.
D)   Proteobacteria.
E)   Gram- positive bacteria.F) All of the above
G) A) and D)

Question 17

Which of the following is not gram- positive?

Accepted Answer

A)   Mycobacterium
B)   Bacillus
C)   Staphylococcus
D)   Treponema
E)   CorynebacteriumF) C) and D)
G) B) and E)

Question 18

Borrelia is classified as a spirochete because it

Accepted Answer

A)   Is a pathogen.
B)   Is aerobic.
C)   Possesses an axial filament.
D)   Is a rod.
E)   None of the above.F) A) and B)
G) A) and C)

Question 19

You have isolated a gram- positive rod. What should you do next?

Accepted Answer

A)   Lactose fermentation
B)   Flagella stain
C)   Enterotube
D)   Gram stain
E)   Endospore stainF) C) and E)
G) All of the above E

Question 20

Which of the following form conidiospores?

Accepted Answer

A)   Rickettsias
B)   Spiral and curved bacteria
C)   Actinomycetes and related organisms
D)   Anaerobic gram- negative cocci
E)   Endospore- forming gram- positive rods and cocciF) B) and E)
G) A) and B)

Exam 11: The Prokaryotes: Domains Bacteria and Archaea

Which of the following is not a characteristic of spirochetes?

Correct AnswerverifiedShow Answer

All of the following are gram- positive. Which does not belong with the others?

Correct AnswerverifiedShow Answer

Streptomyces differs from Actinomyces because Streptomyces

Correct AnswerverifiedShow Answer

Which of the following lacks a cell wall?

Correct AnswerverifiedShow Answer

Salmonella, Shigella, Yersinia, and Serratia are all

Correct AnswerverifiedShow Answer

Which of the following is not an enteric?

Correct AnswerverifiedShow Answer

What should you do if you suspect a patient has tuberculosis?

Correct AnswerverifiedShow Answer

Which of the following is not a characteristic of Neisseria?

Correct AnswerverifiedShow Answer

You have isolated a bacterium that grows in a medium containing only inorganic nutrients. Ammonia is oxidized to nitrate ion. This bacterium is

Correct AnswerverifiedShow Answer

Which of the following does not belong with the others?

Correct AnswerverifiedShow Answer

Which of the following pairs is mismatched?

Correct AnswerverifiedShow Answer

Which of the following are found primarily in the intestines of humans?

Correct AnswerverifiedA

The nonsulfur photosynthetic bacteria use organic compounds as

Correct AnswerverifiedShow Answer

You have isolated an aerobic gram- positive, endospore- forming bacterium that grows wells on nutrient agar. To which of the following groups does it most likely belong?

Correct AnswerverifiedC

Requirements for X and V factors are used to identify

Correct AnswerverifiedShow Answer

Escherichia coli belongs to the

Correct AnswerverifiedShow Answer

Which of the following is not gram- positive?

Correct AnswerverifiedShow Answer

Borrelia is classified as a spirochete because it

Correct AnswerverifiedShow Answer

You have isolated a gram- positive rod. What should you do next?

Correct AnswerverifiedE

Which of the following form conidiospores?

Correct AnswerverifiedShow Answer

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A

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C

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E

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