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Magnetosomes are


A) infoldings of the cell membrane.
B) termed metachromatic granules.
C) responsible for the heat resistance of endospores.
D) composed of magnetic iron oxide particles.
E) found in all bacteria.

F) B) and D)
G) B) and E)

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D

Archaea do not have the typical peptidoglycan structure found in bacterial cell walls.

A) True
B) False

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The site/s for most ATP synthesis in prokaryotic cells is/are the


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

F) A) and B)
G) D) and E)

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Bacterial endospores are not produced by


A) Staphylococcus.
B) Sporosarcina.
C) Bacillus.
D) Clostridium.
E) All of these choices are correct.

F) A) and B)
G) C) and D)

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All bacterial cells have


A) a chromosome.
B) fimbriae.
C) endospores.
D) capsules.
E) flagella.

F) B) and E)
G) A) and B)

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Hot carbol fuchsin is the primary dye in the acid-fast stain.

A) True
B) False

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Lipopolysaccharide is an important cell wall component of


A) gram-negative bacteria.
B) gram-positive bacteria.
C) acid-fast bacteria.
D) mycoplasmas.
E) protoplasts.

F) C) and D)
G) A) and B)

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The outcome of the Gram stain is based on differences in the cell's


A) ribosomes.
B) inclusions.
C) cell wall.
D) cell membrane.
E) flagella.

F) A) and E)
G) A) and D)

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According to current thought regarding the domains of life, which two domains are believed to be the most closely related?


A) Bacteria and Eukarya
B) Archaea and Bacteria
C) Archaea and Eukarya

D) A) and B)
E) A) and C)

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Bacteria with small bunches of flagella emerging from the same site are said to be


A) lophotrichous.
B) peritrichous.
C) monotrichous.
D) amphitrichous.
E) spirilla.

F) B) and C)
G) None of the above

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All of the following terms describe environmental adaptations found among the members of the domain Archaea, except


A) thermophilic.
B) psychrophilic.
C) acidophilic.
D) halophilic.
E) barophilic.
F) There are no exceptions here.Each of these adaptations is seen among different members of the domain Archaea.

G) A) and D)
H) C) and F)

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The chemical components of ribosomes are proteins and _____.

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ribosomal ...

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All of the following are correct about biofilms, except


A) they are cooperative associations among several microbial groups.
B) they play an important role in recycling elements in the Earth.
C) they can colonize medical devices.
D) an example could be the scum that builds up in toilet bowls.
E) they are harmless aggregations of microbes.

F) A) and D)
G) B) and D)

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E

Which of the following is mismatched?


A) Rickettsia rickettsii: Rocky Mountain Spotted Fever
B) Rickettsia typhi: endemic typhus
C) Chlamydia trachomatis: blindness
D) Coxiella burnetti: cowpox
E) All of these choices are correct.

F) None of the above
G) A) and D)

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Which phylum is mismatched?


A) Gracilicutes - gram-negative cell walls
B) Firmicutes - gram-positive cell walls
C) Actinobacteria - waxy acid-fast cell walls
D) Proteobacteria - archaea cell walls

E) A) and B)
F) A) and C)

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The short, numerous appendages used by some bacterial cells for adhering to surfaces are called


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

F) B) and D)
G) D) and E)

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The function of bacterial endospores is


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

F) D) and E)
G) A) and B)

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If bacteria living in salty seawater were displaced to a freshwater environment, the cell structure that would prevent the cells from rupturing is


A) endospore.
B) cell wall.
C) cell membrane.
D) capsule.
E) slime layer.

F) All of the above
G) A) and C)

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

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Bergey's

Which of the following, pertaining to prokaryotic cell membranes, is mismatched?


A) internal folds - mesosomes
B) sterols present - mycoplasmas
C) form a bilayer - phospholipids
D) unique hydrocarbon present - cyanobacteria
E) function - regulates transport of nutrients and wastes

F) B) and C)
G) C) and E)

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