Gram Negative Bacteria

Question 1

Different shapes of bacteria

Answer 1

Cocobacilli
Diplococci
Bacilli
Curved

Question 2

Diplococci maltose fermenters

Answer 2

N. Meningitidis

Question 3

Diplococci non maltose fermenters

Answer 3

N.gonorrhea
Moraxella

Question 4

Cocobacilli

Answer 4

H.influenza
Brucella
Bordatella pertussis
Pasturella
Franciella

Question 5

Bacilli

Answer 5

E.coli
Klebsiella
Serratia
Enterobacter
Pseudomonas
Shigella
Yersinia
Salmonella
Proteus

Question 6

Non lactose fernenters what’s the next test

Answer 6

Oxidase test

Question 7

Oxidase positive non lactose fermenter bacilli

Answer 7

Pseudomonas

Question 8

If oxidase negative bacilli what test to do next

Answer 8

H2S production in TSI agar

Question 9

H2S production in TSI agar positive

Answer 9

Salmonella
Proteus

Question 10

H2S production negative in TSI agar

Answer 10

Shigella
Yersinia

Question 11

Curved rods next test

Answer 11

Oxidase test

Question 12

Features of vibrio cholera

Answer 12

Grows in alkaline medium
Oxidase positive curved

Question 13

Features of campylobacter

Answer 13

Grows in 42degree Celsius
Oxidase test positive curved

Question 14

Features of H.pylori

Answer 14

Urease producing
Oxidase positive
Curved

Question 15

Main virulence factor of vibrio

Answer 15

AB toxin

Question 16

MOA of AB toxin

Answer 16

It upregulates Gs pathway which increases cAMP and causes Efflux of CL- and h2o