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Flashcards in Gram negtive bacteria Deck (12)
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1

What colour do Gram negative bacteria stain?

Red/pink (LPS dissolved by acetone + secondary stain)

2

What are the two main classes of Gram negative cocci?

Neisseria meningitidis/gonorrhoeae
Moraxella catarrhalis

3

What is the main symptom of moraxella catarrhalis?

Respiratory tract infections

4

What are the three main classes of Gram negative bacilli?

Aerobic
Anaerobic
Microaerophilic

5

How are Gram negative aerobic bacilli further distinguished?

Small (haemophilus influenza)
Large coliforms (escherichia coli/salmonella enterica and typhi)
Regular (pseudomonas)

6

What symptom differs between e-coli and salmonella?

Escherichia coli presents with UTI
They both present with diarrhoea

7

What are the two main types of Gram negative microaerophilic bacilli?

Helicobacter pylori
Campylobacter

8

What symptom does helicobacter pylori present with?

Ulcers through damage to mucosa

9

What symptom does campylobacter present with and where does the species originate?

Bloody diarrhoea (comes from animals)

10

Haemophilus influenza presents with what symptom?

Respiratory tract infection

11

From what does pseudomonas originate and what are its main symptoms?

Comes from water and soil
Pneumonia and UTI

12

What is the main species of Gram negative anaerobic bacilli and what are its symptoms?

Bacteroides fragilis
Intra-abdominal abscess