Enterobactericeae

Question 1

What are the normal flora bacterias of enterobacteriaceae?

Answer 1

E.coli
Klebsiella
Enterobacter
Proteus

Question 2

What are the pathogenic bacterias of enterobacteriaceae?

Answer 2

Shigella
Yersinia
Salmonella

Question 3

Which are them are lactose positive?

Answer 3

E.coli
Klebsiella
Enterobacter

Question 4

Which entereobacteriaceae are lactose negative?

Answer 4

Proteus
Shigella
Yersinia
Salmonella

Question 5

Which are them are nonmotile enterobacter?

Answer 5

Klebsiella
Shigella
Y.pestis
Other Yersinia at &above 37 celcius

Question 6

What is IMVIC?

Answer 6

Indole,Methylene Red,Voges-Proskauker,Citrate

Used for Lactose + colonies

Question 7

IMVIC of;
E.coli
Klebsiella
Enterobacter

Answer 7

++–

• -++
• -++

Question 8

Which enterobactericeae is metalic green in EMB?

Answer 8

E.coli

Question 9

Which enterobactericeae is encapsulated and has mucoid colony?

Answer 9

Klebsiella

Question 10

Which enterobacteriaceae has resistance to ab?

Answer 10

Enterobacter

Question 11

H2S positive?

Answer 11

Proteus & Salmonella

Question 12

Urease postive enterobacteriaceas

Answer 12

Proteus and Yersinia

Question 13

Which enterobacteriaceae has actin filaments and is highly virulent?

Answer 13

Shigella

Question 14

Which one has bipolar staining?

Answer 14

Yersinia

Question 15

Which enterobactericeae needs only 200 bacteria to infect?

Answer 15

Shigella

Question 16

What are the 3 shiga toxin effects?

Answer 16

Cytotoxic:Bloody diarrhea
Neurotoxic:Neurological
Enterotoxic:Secretory diarrhea

Question 17

What is the only E.coli that doesn’t destruct epithelial cells?

Answer 17

Enterotoxigenic E.coli(ETEC)

Question 18

Which Salmonella doesn’t produce H2S and has a capsule?

Answer 18

S.typhi

Question 19

What are the pathologies related with salmonella?

Answer 19

Enterocolitis-enterotoxin mediated
Enteric fever-Vi antigen on capsule of S.typhilis and S.paratyphilis-Endotoxin mediated
Bactericemia
Local infections
Chronic carrier state

Question 20

What do we use for differentiation of Salmonella and Shigella?

Answer 20

Latex agglutination

Question 21

Which E.coli are proliferated in Small intestine?

Answer 21

EPEC&ETEC

Question 22

Which E.coli are proliferated in Large intestine?

Answer 22

EIEC&EHEC

Question 23

Which E.coli are plasmid mediated?

Answer 23

EPEC&EIEC

Question 24

Which E.coli uses heat stabele/labeled enterotoxin?

Answer 24

ETEC

Question 25

Which E.coli is mediated by cytotoxic verotoxin(shiga like toxin)?

Answer 25

EHEC

Question 26

Which of the two E.coli cause bloody diarrhea?

Answer 26

EHEC&EIEC

Question 27

What are the 2 multiplication places of enteric fever?

Answer 27

1-Intestine

2-RES

Question 28

What is Durham tube?

Answer 28

Detects and calculates gas production

Question 29

What is somatic O antigen?

Answer 29

It is found in all of them bcs of cell wall LPS(Lipid A)

Question 30

What is K and H antigen?

Answer 30

K is found in capsulated ones,H is found in flagella

Question 31

Blood agar is used for _____

Answer 31

Gram + and Gram - bacteria

Question 32

EMB,Endo,Mc Conkey is used for ____

Answer 32

Only Gram - bacteria

Question 33

What are the common features of Enterobacteriaceae?

Answer 33

Catalase +
Oxidase -
Facultatively anaerob
Do not form spores
Fermentative
Some have capsule
Some have pili
Except some yersinia nitrate--->nitrite