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Definition
Media composed of designated amounts of specific compounds and exact contents are known.
Ex. minimal media: provides only nutrients necessary for growth of the microbe
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Contains nutrient rich substances such as yeast extract, peptone, tryptone exact constituent are unknown .
Ex. TSA |
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Allows growth of one group of bacteria while inhibiting some other group
Ex. MSA |
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Term
| What type of bacteria is mainly used to isolate on selective medias? |
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Definition
A certain chemical in the medium cause change in the medium after the bacteria growth
Ex. EMB differentiates between lactose and non-lactose. |
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Definition
Supports the growth of fastidous bacteria by providing specific nutrients
Ex. Blood agar |
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Definition
| Has no nutrients = no bacterial growth |
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Definition
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| CSM(Cellulose supporting medium) |
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Definition
contains yeast extract, peptone, mannitol
Acetobacter→ Acetti→ produce ~2um of cellulose strand/min
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Term
| What is the main function of cellulose production? |
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Definition
1. Cellulose traps aerobic bacteria and provide access to oxygen
2. Protection from UV→ less mutations and increse in survival |
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