Cetrimide Agar

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11 Terms

1
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<p>what type of agar is cetrimide agar?</p>

what type of agar is cetrimide agar?

selective

2
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<p>what is the selective agent in cetrimide?</p>

what is the selective agent in cetrimide?

cetrimide (disinfectant/antiseptic that pseudomonas is resistant to)

3
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<p>what does cetrimide agar test for?</p>

what does cetrimide agar test for?

pseudomonas

4
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principle of CET

inhibits most bacteria; enhances growth and green pigment production by P. aeruginosa which produces pigments like pyocyanin and fluorescein

5
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<p>what pigments does pseudomonas produce?</p>

what pigments does pseudomonas produce?

pyocyanin and fluorescein

6
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which pigment causes the blue color of the colonies on CET?

pyocyanin

7
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<p>which pigment causes the yellow color and fluorescence of the colonies on CET?</p>

which pigment causes the yellow color and fluorescence of the colonies on CET?

pyoverdine

8
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what does certrimdie inhibit?

most bacteria

9
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what does growth and a green color on cetrimide mean?

it is pseudomonas

  • will appear green because of pyocyanin pigment production

10
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what does NO growth and a green color on cetrimide mean?

it is not pseudomonas, it is something else

11
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<p>what does pseudomonas demonstrate under UV light?</p>

what does pseudomonas demonstrate under UV light?

fluorescence