Color & Pigments Flashcards

1
Q

White color

A

Coagulase negative Staphylococci

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2
Q

Gray color

A

Gram (-) rods, Enterococcus spp.

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3
Q

Yellow or Off-white color

A

Staphylococcus aureus
Micrococcus spp.
Non-pathogenic Neisseria spp.

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4
Q

Buff color

A

Diptheroids

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5
Q

Green pigment

A

Pseudomonas aeruginosa
(Due to pyoverdin and pyocyanin)

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6
Q

Red pigment

A

Serratia marcescens
(Due to prodigiosin)

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7
Q

Purple pigment

A

Chromobacterium violaceum

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8
Q

Blue pigment

A

Kluyvera

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9
Q

Brown-black pigment

A

Prevotella melaninogenica

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