1. What should you have seen under the microscope. Activity 5. 1
What should you have seen under the microscope? Activity Gram Stain

2. Bacillus megaterium Stain: gram (+) Shape: rod
Use: a soil inoculant for agriculture and horticulture
Special: can live in extreme environments
Habitat:  very common in soil and vegetation Pathogenicity:  nonpathogenic 

3. Micrococcus luteus Stain: gram (+) Shape: spherical
Found: in soil, dust, water , air, mammalian skin, mouth, oropharynx, and upper respiratory tract.

4. Escherichia coli (Anna’s sample)
Stain: gram (-)
Shape: rod
Cause: bloody diarrhea
Found: mammal intestines and feces
How can I catch E. coli infection?
Eating undercooked ground beef (the inside is pink)
Drinking contaminated (impure) water
Drinking unpasteurized (raw) milk
Working with cattle