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Dental Microbiology > Lec 7-3 - Enterobacteriaceae > Flashcards

Lec 7-3 - Enterobacteriaceae Flashcards

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Biology 101 flashcards
1
Q

entero are gram blank

A

negative rods (motile or non motile)

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2
Q

entero do not form blank

A

spores

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3
Q

entero grow better with blank but can grow without it

A

air

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4
Q

entero are killed by temperatures above blank

A

60 degrees C

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5
Q

entero are not killed by

A

freeze/thaw

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6
Q 
•	E. coli
•	Klebsiella pneumonia
•	Enterobacter
•	Citrobacter
•	Salmonella
•	Shigella
•	Serratia
•	Proteus
•	Providencia
•	Morganella
•	Yersinia sp., including Y. pestis 
•	Noted
 are all blank
A

enterobacteriaceae

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7
Q 
•	Campylobacter
•	Vibrio
•	Aeromonas
•	Plesiomonas
•	Helicobacter
•	pseudomonas
are all blank
A

not entero

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8
Q

lactose fermenting gram negative rods are called blank

A

coliforms

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9
Q

increased coliform means increased blank of things like water

A

fecal contamination

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10
Q

selective indicator agar for enterics

A

macconkey agar

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11
Q

on macconkey plate, lactose fermenters turn blank and non lactose fermenters turn blank

A

pink, white

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12
Q

most abundant microbe in the colon capable of growing aerobically

A

e coli

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13
Q

surface marker antigens of e coli

A

o, h, k

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14
Q

antigen of e colithat has somatic antigens, is stable to boiling, and is a repeating sugar on LPS

A

O

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15
Q

antigen of e coli that has flagellar antigens coming out from all sides (halo)

A

H

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16
Q

antigen of e coli that are capsular antigens which some e coli has but some dont

A

K

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17
Q

two diarrheagenic e coli we need to know

A

ETEC, STEC (EHEC)

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18
Q

most common cause of travelers diarrhea in third world countries

A

etec

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19
Q

etec strains can produce these toxins

A

LT, ST

20
Q

LT is heat blank

A

labile

21
Q

ST is heat blank

A

stable

22
Q

LT stimulates blank

A

cAMP

23
Q

ST stimulates blank

A

cGMP

24
Q

LT and ST are both enterotoxins and both pour out blank

A

watery fluid

25
Q

the e coli more common in developed countries

A

EHEC/STEC, bloody diarrhea

26
Q

transmission from blank can occur with EHEC/STEC

A

waterparks/swimming pools

27
Q

most notorius EHEC strain that is more virulent

A

strain 0157

28
Q

only EHEC blank enter the body but the blank do not

A

toxins, bacteria

29
Q

stx1 of ehec works by cleaving a particular adenine residue from 16S rRNA which halts blank

A

protein synthesis

30
Q

stx2 is like stx1 but it also blocks blank not just halts it

A

protein synthesis

31
Q

blank is worse than blank

A

stx2, stx1

32
Q

most common cause of uti in outpatients

A

e coli

33
Q

second most common cause of uti in outpatients

A

proteus

34
Q

infection confined to the urinary bladder

A

cystitis

35
Q

more severe version of cystitis that extends to the ureters and kidney

A

pylonephritis

36
Q

all e coli express this type of pili

A

1

37
Q

invasive enteric infectious organisms that dont just stay in the lumen and go into the mucus and are invasive

A

salmonella, shigella

38
Q

shigella are most likely to produce blank which is a terrible diarrhea that is chronic and is the butts equivalent of dry heaving

A

shigella

39
Q

detecting salmonella and shigella on macconkey agar would show blank

A

white colonies

40
Q

new sensitive agar for detecting salmonella

A

XLD agar

41
Q

salmonella produces blank colonies on XLD

A

black (easy to spot)

42
Q

blank inocolum pathogens are usually in contaminated water or food held at higher temperatures like salmonella… secondary cases are rare

A

high

43
Q

blank inoculum pathogens can be transmitted by bodily contact, swimming pools, ice, can have secondary cases like cruise ships

A

low

44
Q

most common cause of salmonella food poisoning like in eggs, chicken, pet reptiles

A

salmonella enterica

45
Q

salmonella naming

A

o E.g. Salmonella enterica Serotype Enteritidis

o Or Salmonella enterica Serotype Saintpaul

Dental Microbiology (47 decks)

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