Page 7 - GPHS Environmental Public Health Standards (Foundation of Public Health) v1
P. 7

Bacteria – size, shape and structure















                                                                                                         There are three basic bacterial shapes:


                                                                                                          Spheres or ball-shaped (cocci bacteria).



                                                                                                          Rod-shaped bacteria (bacilli).


                                                                                                          Spirals or helixes (spirochetes).


                                                                                                         They can exist as single cells, in pairs, chains or

                                                                                                         clusters.
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