Alpha hemolysis: Beta hemolysis: Gama hemolysis: Lactose Fermentation: Gram Nega

Question

Alpha hemolysis:

Beta hemolysis:

Gama hemolysis:

Lactose Fermentation:

Gram Negative:

Mannitol Fermentation:

Salt Tollerance:

please type & complete this table

What can you learn about your microbe from this test What do the following results look like? What bacterial species would be a good for positive and negative controls? Blood Agar

Alpha hemolysis:

Beta hemolysis:

Gama hemolysis:

MacConkey Agar

Lactose Fermentation:

Gram Negative:

Mannitol Salt Agar

Mannitol Fermentation:

Salt Tollerance:

Explanation / Answer

What can you learn about microbes frim this test.

Blood agar: alpha hemolysis-streptococcus pneumonia.

Beta hemolysis- Streptococcus pyogenes.

MacConkey agar: Isolation of Enterobacteriaceae , pseudomonas spp.

Ferment lactose- production of acid and pH drops of medium

Pink halo is not seen around the colonies of weeker lactose fermenting bacteria.

Mannitol Salt agar : Staphylococcus aureus.

Bacterial species would be good for positive and negative control :

Blood agar : positve - Bacillus cereus.

  negative - E.coli

MacConkey agar : positive - E.coli .

Negative -proteus,shigella,salmonella

Mannitol salt agar : positive - Staphylococcus aureus .

Negative -E.coli .

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