Fig. 4. Bacterial structure. The bacterial cells have complex 

 structure as is shown by this electronmicrograph of a section 

 through B. cereus. The cells have a well-defined cell wall, a 

 nuclear structure, and many types of cell inclusions. (From 



Chapman and Hillier.) 



(A) Cell wall. (F) Fibrous material. 



(C) Peripheral bodies. (G) Nucleus. 



(D) Transverse cell wall. (H) Cytoplasm. 



(E) Transverse cell wall. (|) Inclusions. 



L.M.R. Limit of light microscope. 



