List of bacteria Flashcards

1
Q

Streptococcus pyogenes : Group A

A

GRAM +VE

  1. Catalase -ve
  2. b-haemolysis on HBA
  3. Resistant to bactiracin
  4. Blue staining round shaped in chains
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2
Q

Streptococcus pneumoniae

A

GRAM +VE

  1. Catalase -ve
  2. alpha-haemolysis on HBA
  3. Sensitive to optochin
  4. Blue staining round shaped in chains
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3
Q

Staphylococcus aureus

A

GRAM +VE

  1. Catalase +ve
  2. Coagulase +ve
  3. Confirmation on mannitol sugar agar (MSA) –> turns yellow
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4
Q

Neisseria spp

A

GRAM -VE

1. round shaped on gram stain under microscope

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5
Q

Clostridium spp

A

GRAM -VE

  1. rod-shaped on gram stain
  2. endospore formation
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6
Q

Listeria monocytogenes

A

GRAM -VE

  1. rod shaped on gram stain
  2. no endospore formation
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7
Q

Haemophillus influenzae

A

GRAM -VE

  1. rod-shaped/bacillus
  2. Oxidase +ve
  3. straight bacillus
  4. grows on chocolate agar
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8
Q

Escherichiae coli

A

GRAM -VE

  1. bacillus/rod shaped
  2. Oxidase -ve
  3. Grows on MAC(macconkey) agar +lactose fermentation (turns pink on a yellow agar)
  4. green sheen on EMB(eosin methylene blue) agar
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9
Q

Shigella spp

A

GRAM -VE

  1. bacillus/rod shaped
  2. Oxidase -ve
  3. Grows on MAC(macconkey) agar but no lactose fermentation (no colour change)
  4. Grows on XLD agar but does not change the colour (pink)
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10
Q

Salmonella spp

A

GRAM -VE

  1. bacillus/rod shaped
  2. Oxidase -ve
  3. Grows on MAC(macconkey) agar but no lactose fermentation (no colour change)
  4. Grows on XLD agar and turns the centre of colonies black
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