Station 2
Cell Wall of BacteriaThe structure of the cell wall is another way to classify bacteria. One type has a thick less complex cell wall, while the other is thinner and morecomplex.
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With a technique called gram staining we can identify the two types. The bacteria after the stain will either be violet or purple and pink. If the bacteria stains violet or purple the bacteria is gram positive. If the bacteria stain pink the bacteria is gram negative. Gram negative bacteria have a complex and thinner cell wall.
Procedure:
Procedure:
- Use the pictures given of various bacteria. Draw a sketh in your journal.
- Record the name of the bacteria.
- Identify as gram negative or gram positive.