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5 Cards in this Set

  • Front
  • Back

DNase Agar

- Medium is green


- Positive result would cause a lack of color inthe area around bacterial growth


- Means that bacteria produces DNase

MacConkey Agar

- Medium is red


- Positive result would cause the bacteria to turnpink, meaning it ferments lactose


-Negative result would mean it stays dark red

Skim MilkAgar

- Positive result would see clearing of coloraround bacterial growth (White -> Clear)


- Ability to produce protease enzyme

Spirit Blue Agar

- Medium is blue


- Positive result will cause clearing aroundbacteria and colonies turn blue


- Ability to produce lipase enzymes that digest fatty acids


- Negative = white colonies



StarchAgar

- First, we add iodine...


- Positive result will see clearing around bacteria


- Produces amylase enzymes to break downstarch


- Negative result would see brown from iodine upagainst bacteria