How are bacteria classified?

Bacteria are classified by their shape. The three shapes are:

  • round (cocci)
  • rods (bacillus)
  • spiral (spirochete)

 

  What do the cocci look like?

 

 

  What do the bacilli look like?

 

  What do the spirochetes look like?

 

    photos from http://biology.clc.uc.edu/fankhauser/Labs/Microscope/Bacterial_Morphology.htm

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Last updated: 08/07/03