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Microbiology > Bacillus > Flashcards

Bacillus Flashcards

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Biology 101 flashcards
1
Q

What are 4 Bacillus characteristics and morphologies?

A
  • rod shaped
  • gram positive
  • catalase positive
  • endospore forming
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2
Q

What Bacillus structure allows for its rod shape?

A

the cell wall

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3
Q

The cell wall is Bacillus’s second barrier. What is its first?

A

capsule

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4
Q

Bacillus have what type of surface proteins?

A

peptidoglycan, surface-level proteins

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5
Q

True or False? Bacillus have both teichoic acid and lipoteichoic acid.

A

True

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6
Q

What is heat-stable and resistant to harsh conditions and many antiseptic chemicals?

A

Bacillus endospore

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7
Q

The Bacillus endospore is encased in a protein assembly called ______.

A

spore coat

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8
Q

The spore coat of the Bacillus endospore is organized into _____.

A

distinct layers

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9
Q

Bacillus are important in what 4 areas of industry?

A
  • enzyme production
  • bioinsecticides
  • poly-gamma-glutamic acids
  • bioplastics
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10
Q

What Bacillus species causes anthrax?

A

B. anthracis

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11
Q

What Bacillus species causes food poisoning?

A

B. cereus

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12
Q

________ possesses large virulence plasmids.

A

Bacillus pathogenic strains

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13
Q

Virulence plasmids contain ______.

A

genes for virulence factors

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14
Q

Koch’s postulates are used to determine _______.

A

microbial etiology (what microbes cause what disease)

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15
Q

______ is zoonotic.

A

Anthrax

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16
Q

What are the three types of anthrax transmission?

A

cutaneous, gastrointestinal, inhalation

17
Q

How is anthrax categorized?

A

CDC category A select agent

18
Q

Can anthrax be spread human to human?

A

No

19
Q

95% of human anthrax cases are ______.

A

cutaneous

20
Q

2-3 days post cutaneous B. anthracis infection, a small pimple is formed called?

A

papule

21
Q

Vesicles around the papule in anthrax infection ulcerate into ______.

A

coal black eschar

22
Q

True or False? In B. anthracis infection edema forms around the coal black eschar, but the eschar is painless.

A

True

23
Q

Left untreated, cutaneous anthrax infection can cause sepsis which is usually fatal. In what percentage of cases does this occur?

A

20%

24
Q

What percent of inhalation anthrax cases are fatal?

A

50%

25
Q

On blood agar, anthrax forms _________.

A

white, non-hemolytic, rough edged colonies

26
Q

Vegetative anthrax contains what outer structure?

A

capsule

Microbiology (11 decks)

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