Micrococcae vs. Staphylococcus Flashcards by A A | Brainscape

Q

Cocci in clusters

A

Staphylococcus

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Q

Cocci in tetrads

A

Micrococci

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Q

Cocci by 8

A

Sarcina

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Q

White pinhead colonies

A

Staphylococci

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Q

A prime hemolysis:
(Inner/outer)?

A

A - inner
B - outer

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Q

Pigment of S. aureus in Loeffler serum

A

Golden yellow pigment

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Q

MSA - Inhibitor

A

7.5% Nacl

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Q

MSA - pH indicator

A

Phenol red

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Q

MSA:
(pos/neg)

A

Pos - yellow
Neg - red

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Q

Pink growth in MSA means?

A

Grows but cannot ferment mannitol

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Q

Yellow colony in MSA

A

S. aureus

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Q

Pink colony in MSA

A

S. epidermidis
S. saprophyticus

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Q

Reagent of Catalase test

A

3% H2O2

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Q

Catalase (+)

A

Staphylococcus & Micrococcus

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Q

Catalase (-)

A

Streptococcus

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Q

Facultative anaerobe

A

Staphylococci

Q

Obligate aerobe

A

Micrococcus

Q

Bacitracin/Taxo A: (R)

A

Staphylococcus

Q

Bacitracin/Taxo A: (S)

A

Micrococcus

Q

Oxidase (-)

A

Staphylococcus

Q

Oxidase (+)

A

Micrococcus

Q

OF test: (Fermenter/Acidic)

A

Staphylococcus

Q

OF test (Oxidation/alkalinic)

A

Micrococcus

Q

(+) & (-) result of Oxidase test

A

(+) - blue/purple
(-) - no color

Q

Indicator of Oxidase test

A

Bromthymol blue

Q

Fibrinogen to Fibrin clot,
what test?

A

Coagulase test

Q

Screening of coagulase test

A

Slide coagulase

Q

Confirmatory of Coagulase test

A

Tube coagulase

Q

Slide coagulase detects?

A

Cell bound coagulase

Q

Tube coagulase detects

A

Free coagulase
*Check every 30 mins

Q

Enzyme that can dissolve clot

A

Fibrinolysin/staphylokinase

Q

Enzyme that can cause anemia

A

Hemolysin