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RACP Written 2018 > Infectious Diseases - Bacteria Classifications > Flashcards

Infectious Diseases - Bacteria Classifications Flashcards

1
Q

Which bacteria lack a cell wall?

A

** These Rascals May Microscopically Lack Colour **

Treponema
Rickettsia
Mycobacterium 
Mycoplasma 
Legionella pneumophila 
Chlamydia
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2
Q

Encapsulated Bacteria?

A

** Some Nasty Killers Have Some Capsule Protection **

Strep pneumonia
Neisseria meningitidis
Klebsiella
H influenza
Salmonella typhi
Cryptococcus neoformans
Pseudomonas aeruginosa
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3
Q

Encapsulated or Lacking a Call Wall?

Strep pneumonia

A

Encapsulated

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4
Q

Encapsulated or Lacking a Call Wall?

Treponema

A

Lacks a cell wall

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5
Q

Encapsulated or Lacking a Call Wall?

H influenza

A

Encapsulated

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6
Q

Encapsulated or Lacking a Call Wall?

Pseudomonas

A

Encapsulated

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7
Q

Encapsulated or Lacking a Call Wall?

Rickettsia

A

Lacks a Cell Wall

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8
Q

Encapsulated or Lacking a Call Wall?

Mycobacterium

A

Lacks a cell wall

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9
Q

Neisseria meningitidis

A

Encapsulated

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10
Q

Encapsulated or Lacking a Call Wall?

Mycoplasma

A

Lacks a cell wall

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11
Q

Encapsulated or Lacking a Call Wall?

Legionella pneumophila

A

Lacks a cell wall

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12
Q

Encapsulated or Lacking a Call Wall?

Chlamydia

A

Lacks a cell wall

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13
Q

Encapsulated or Lacking a Call Wall?

Klebsiella

A

Encapsulated

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14
Q

Encapsulated or Lacking a Call Wall?

Salmonella typhi

A

Encapsulated

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15
Q

Encapsulated or Lacking a Call Wall?

Cryptococcus neoformans

A

Encapsulated

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16
Q

What are the gram NEGATIVE cocci?

A

Neisseria meningitidis (**diplococci)

Neisseria gonorrhoea

Moraxella

17
Q

What do gram negative stain?

A

Pink/red

18
Q

What are the gram negative coccobacilli?

A 
H influenza
B pertussis
Brucella
F tularensis
P multocida
L pneumophila
19
Q

Gram negative bacilli are separated into lactose positive and lactose negative.

What are the lactose positive?

A

Fast fermenters:

  • Klebsiella
  • E. coli
  • Enterobacter

Slow fermenters:

  • citrobacter
  • serratia
20
Q

Gram negative bacilli are separated into lactose positive and lactose negative.

What are the lactose negative?

A

Oxidase positive:

  • v cholera
  • p aeruginosa

Oxidase negative: urease positive

  • p mirabilus
  • h pylori

Oxidase negative: urease negative

  • yersinia
  • c jejuni
  • shigella
  • salmonella
21
Q

What do gram positive stain as?

A

Stain purple because of their thick peptidoglycan cell wall

22
Q

What are the gram positive bacilli?

A

Bacillus
Clostridium
Corynebacterium diphtheria
Listeria

23
Q

Gram positive cocci are either Catalase Positive (staph) or Catalase Negative (strep)

Name the staph?

A

Coag positive:
- s aureus

Coag neg:

  • s epidermidis
  • s saprophyticus
24
Q

Gram positive cocci are either Catalase Positive (staph) or Catalase Negative (strep)

Name the strep:

A

Beta haemolytic: clear on blood agar

  • Group A (=pyogenes)
  • Group B (= agalactiae)

Gamma haemolytic
- enterococcus (faecalis and faecium)

Alpha haemolytic: green on blood agar

  • s pneumoniae
  • s viridans (mutants and sanguis)
25
Q

What classification is:

N meningitidis

A

Gram negative cocci

26
Q

What classification is:

H influenza

A

Gram negative coccobacilli

27
Q

What classification is:

B pertussis

A

Gram negative coccobacilli

28
Q

What classification is:

V cholera

A

Oxidase positive lactose negative gram negative bacilli

29
Q

What classification is:

Moraxella

A

Gram neg cocci

30
Q

Brucella

A

Gram neg coccobacilli

31
Q

What classification is:

N gonorrhoea

A

Gram neg cocci

32
Q

What classification is:

E coli and Klebsiella

A

Lactose positive gram negative bacilli and fast fermenters

33
Q

What classification is:

Enterobacter

A

Gram negative lactose positive bacilli and fast fermenters

34
Q

What classification is:

Clostridium

A

Gram positive bacilli

35
Q

Listeria

A

Gram positive bacilli

RACP Written 2018 (167 decks)

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