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4Ex #4, p 10. Distribution of Microbes in the Environment:
The following file is a 'copy' of Ex 4 in the Lab Manual
http://facultyfiles.deanza.edu/gems/gilleskay/Ex4DistributionofMicrobesint.pdf
Additional references: Terms: - Textbook: Aseptic technique
- Ch 1 p 1-6 Colonial morphology
Colony
Mycelium
Room Temperature
Procedure:
The Plate on Top:
• This plate was inoculated with a cotton
swab that was wiped over a shower
drain
• Fungi usually produce large, ‘fuzzy’
colonies (marked F)
• How many colonies are on the plate?
How many bacterial colonies?
• How many different bacterial colonies
are there?
The Plate on the Bottom:
• This plate was inoculated with 500 L of
indoor air
• How many colonies are on the plate?
How many bacterial colonies?
• How many different bacterial colonies
are there?
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