Cocci

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Bacteria have a wide variety of shapes (different morphologies) and sizes which are important in cell recognition and identification of bacteria.[1] Cocci are spherical in shape and can be arranged:

  • In pairs to form diplococci
  • In chains to form streptococci
  • In grape like structures to form staphylococci
  • In groups of 4 to form tetrads
  • In cubic groups of 8 to form sarcinae


 References

  1. ↑ Madigan, M.T., Martinko, J.M., Stahl, D.A., Clark, D.P. (2012) Brock Biology of Micro-organisms. (13th ed.) San Francisco: Pearson Education. Page 76


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