Microbiology Quiz 2

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Author:
glparker86
ID:
239690
Filename:
Microbiology Quiz 2
Updated:
2013-10-09 01:51:26
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Lab
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Description:
microbio
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  1. What type of organism is phenylethyl Alcohol Agar for ? how does it work ? 

    How does it effect gram negaitve ?
    • Gram-Positive Cocci
    • It just discourages growth

    breaks down membrane permeability layer
  2. What is Mannitol Salt agar for ? How does it work ? 

    why is it differential and selective ?
    It provides mannitol for certain bacteria , but has salt to dehydrate most bacteria Phenol red changes the color to indicate fermentationis used for isolation and differentation

    Staphylococcus aureus
  3. What organisms is MacConkey Agar used for  ? 

    Is it selective ,differential ,or both ?

    What does it contain ?
    it is used to isolate and differentiate members of the Enterobacteriaceae . since it can ferment lactose 

    both

    crlb
  4. What is the Eosin Metheylene Blue Agar ?

    What does pls ?
    Isolation of fecal coliforms

    peptone , sucrose , lactose
  5. What is Hektoen Enteric Agar for ?

    How does it work ?
    It is for Shigella and Salmonella species 

    Looks for ablity to lactose , sucrose , salciin. and hydrogen into sulfur gas

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