Multimedia Gallery - Classification of Bacteria and Archaea

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Classification of Bacteria and Archaea

ID # 128

Classification of Bacteria and Archaea
1000x Image of Clostridium perfringens

STEM Standard addressed: ESS2A - Earth Materials and Systems

Appropriate Grade Level(s)
  • 6-8
  • 9-12
  • College-level
Materials are best used for
  • Classroom Lectures
  • Distance Education Classes
  • Extension Presentations
  • Website Information
General Course Areas
  • Introduction to Soil Science
Classification of bacteria and archaea is complex and based on size, shape, and biochemistry (phenotypic classification) or genetics (phylogenetic classification). Size and shape variations range from round to short rods to spirals. Short rods dominate most soil populations. Some soil bacteria are pleomorphic in that they can change size and shape, usually as a function of age. With a light microscope, it is difficult to see anything other than the basic shape of the cells. Figure 3-7 shows a view of Clostridium perfringens

Peer Review: Yes

Credit this item to: Centers for Disease Control and Prevention, image number 11196
Media Date: 2012-12-01
Provided By: (SSSA) Soil Science Society of America


  • * Know Soil Know Life

Submitted By: (SSSA) Soil Science Society of America


  • Know Soil Know Life


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