Selective and Differential media Micro (CH 5)

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5 Terms

1
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Selective Media

One ingredient added to agar that will let only one certain type of bacteria grow, inhibiting the other 3 types

2
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4 types of selective media

Gram + cocci, Gram - cocci

Gram + rods, Gram - rods

3
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Mannitol Salt Agar

Very high levels of salt (NaCl), which makes it selective for gram + cocci

4
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MacConkey Agar

Bile salts, which makes it selective for gram - rods

5
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Differential media

Allows us to tell the different species apart

Sugar added