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Micro 2 fase > Enterobacterias > Flashcards

Enterobacterias Flashcards

1
Q

80% corresponde a

A

E. coli

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2
Q

qué son?

A

Bacilos gram negativos
Anaerobios facultativos
inmóbiles (salvo serratia y enterobacter)
sin flagelos

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3
Q

Agares

A
  • McConkey
  • SS
  • Heckten (enterobacter)
  • xiliosa, lisina y desoxicolato
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4
Q

Agar sangre es selectivo para identificar enterobacteria. V o F

A

FALSO. puede simular Staf aureus por beta hemolisis

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5
Q

Fermentan lactosa

A

Klebsiella, Enterobacter, Serratia, E coli

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6
Q

Reacción de vidal

A

para salmonella Tiphi por los flagelos

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7
Q

Si bacteria oxida, entonces _______fermenta

A

No fermenta, y viceversa.

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8
Q

EN serumps,q los nitratos se conviertan en nitritos pruueban que

A

bacteria oxida

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9
Q

Todas son CATALASA POSITIVO excepto

A

Suiguella dysenteriae tipo I

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10
Q

identifica sulfuro ferroso

A

Agar TSI

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11
Q

Identifica desaminacio´n y descarboxilación

A

Agar Lia

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12
Q

TSI

A

Tio sulfuro ferroso

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13
Q

LIA

A

lisina hierro

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14
Q

Indol + reactivo de Kovach

A

se forma anillo pirrol en bacterias con triptofanasa

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15
Q

O157.H7

A

Entero hemorrágica!

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16
Q

Antígeno O

A

termoestable, LPS hidrofílico

17
Q

Angíteno H

A

flagelina

18
Q

Antígeno Vi

A

en cápsula; termolábil; virulencia de Salmonella

19
Q

Interfieren con detección de AgO

A

AgK y Ag Vi; se destruyen con ebullición

20
Q

Meningitis neonatal asociada a

A

E coli enteropatógenas mediante K1

21
Q

PAP

A

PILI ASOCIADO A PIELONEFRITIS; tb llamado pili P. papel en ITU como receptor gal-gal

22
Q

Lipido Aasociado a

A

LPS, osea, sepsis

23
Q

Toxina termolabil de Ecoli

A

TOXINA ADP RIBOSILADORA

24
Q

Toxina shiga y shiga like (o verotoxina)

A

escinde ARNr 28s de unidad ribosomica 60s

Micro 2 fase (5 decks)

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