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

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Presentation transcript:

What should you have seen under the microscope. Activity 5. 1 What should you have seen under the microscope? Activity 5.1.4 Gram Stain

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 

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

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

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