Catalase Pos. GPR- Bacillus Flashcards

1
Q

List two catalyst negative gPR’s

A

Lactobacillus and Erysipelothrix

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2
Q

When I going to find gram-positive rods it’s good to know which bacteria tend to be much larger

A

Bacillus tend to be much larger

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3
Q

Blank are the only aerobic endospore farmers

A

Bacillus

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4
Q

How would one differentiate between wisteria and group B beta-hemolytic streptococci

A

Listeria is catalase positive, group B beta hemolytic streptococci are catalase negative

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5
Q

Name to gram-positive rods that are motile

A

Listeria and bacillus

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6
Q

On what media would you look for Hydrogen sulfide production

A

TSI

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7
Q

Anthrax, etiological agent…

A

Bacillus anthracis

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8
Q

Bacillus cereus is the etiological agent for…

A

Food poisoning

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9
Q

Describe what bacillus would look like under the microscope

A

Large purple box the rods

however note: older cells tend to stain gram-negative

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10
Q

Most of the species are blank and highly blank

A

Beta hemolytic, Motile

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11
Q

The most common route of infection with bacillus anthracis is…

A

From infected animal

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12
Q

The most common sign of anthrax

A

Esschar lesion

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13
Q

Anthrax is spread via blank

A

Endospores

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14
Q

Blank are essential for the virulence of anthrax

A

Siderophores and Iron heme scavengers

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15
Q

List three catalase positive GPR’s

A

Corynebacterium, Listeria, bacillus

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16
Q

2 virulence plasmids of anthrax

A

PXO1 and pXO2

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17
Q

Blank contains genes needed for synthesis of poly glutamic acid capsule

18
Q

Blank protects anthrax against phagocytic killing

19
Q

Blank contains genes encoding two anthrax toxins

20
Q

pXO1 consists of what three genes

A

PagA, lef, cya

21
Q

Anthrax Genes PAG A

A

Protective antigen (PA)

22
Q

Anthrax Genes Lef

A

Lethal factor (LF)

23
Q

Anthrax genes CYA

A

Edema factor (EF)

24
Q

Blank is a transcriptional activator of anthrax toxins

25
Blank is a transcription repressor of anthrax toxins
PagR
26
The B subunit of anthrax toxins is the blank
PA (protective antigen)
27
The A subunit of anthrax edema toxin is blank factor which is a blank
Edema factor, a calmodulin dependent adenylate cyclase
28
The A subunit of anthrax lethal toxin is blank factor which is a blank
Lethal factor, a zinc metalloprotease
29
Anthrax lethal toxin causes…
Cell death
30
Anthrax Edema toxin causes…
Edema is surrounding tissue
31
Lethal toxin targets blank and blank
Cardiomiocytes and vascular smooth muscle cells
32
Edema toxin targets a blank in the blank
Hepatocytes in the liver
33
Bacillus cereus is The etiological agent of blank and blank
Ocular infections and food poisoning
34
Emetic
Short incubation period
35
Bacillus cereus diarrheal food poisoning is due to blank and or blank
Heat labile enterotoxin Nhe and HBL
36
Bacillus cereus emetic food poisoning is due to blank made by blank
Cereulide (ETE), cereulide synthetase (ces)
37
Bacillus cereus s layer binds...
ECM components
38
Bacillus cereus virulence factors are regulated by...
Global regulatory PlcR
39
Model GRP organism to study sporulation...
Bacillus subtilis
40
Bacillus anthracis has nonsense mutation in blank that don't allow specific mutations found in bacillus cereus
PlcR