Standard Article

Bacterial Cells

  1. Terry J Beveridge

Published Online: 12 DEC 2001

DOI: 10.1038/npg.els.0000296



How to Cite

Beveridge, T. J. 2001. Bacterial Cells. eLS. .

Author Information

  1. University of Guelph, Guelph, Ontario, Canada

Publication History

  1. Published Online: 12 DEC 2001


Bacteria are prokaryotes and therefore have a simple cell structure. There is no nucleus and genetic material is free within the cytoplasm. The two fundamental types of bacteria – Gram-positive and Gram-negative – have different cell wall structures.


  • bacteria;
  • bacterial structures;
  • bacterial envelope;
  • plasma membrane;
  • cell wall;
  • cytoplasm;
  • cytoplasmic granules;
  • flagella;
  • Gram stain