Solid media (Agar Petri Plates)

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Last updated 6:18 PM on 9/30/26
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7 Terms

1
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How is this media made? (1)

By adding agar (solidifying agent) to liquid media

2
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Most Bacteria cannot do what to agar? (1)

Degrade it

3
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What does solid media allow the growth of? (1)

Colonies (population of identical cells)

4
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What Does solid media allow the isolation of? (1)

Pure cultures (one type of bacterial cell)

5
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What is a chemically defined media (aka minimal media) and an example? (2)

  • Exact chemical composition is known

  • eg. Media Made from known quantities of salts and sugars


6
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What is Chemically undefined media (aka complex media) and an example? (2)

  • Contains rich organic ingredients

  • eg. Media made from yeast extract (all soluble components of yeast cells)


7
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What is the known technique used for solid media? (1)

Streak plate technique