Monday, September 22, 2014

bio233 Gram stain 20140921 Monday


I played previous youtube demo, but the angle did not show details. I then did a demo in class.

I forgot to use 70% ethanol to clean my workspace for the demo.

Some students flamed the loops with the bottom of the flame.

Some students tried multiple times to get the staining working. These are good students that really want to learn.

I asked the students to clean up after the lab.

E coli from Carolina biology has a cocci shape. Bacillus cereus shipped is also contaminated with cocci bacteria.

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