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Bacterial Cell Structure


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Bacterial Cell Structure

  1. 1. Bacterial Cell Structure
  2. 3. Prokaryotae (Bacteria) <ul><li>0.2 – 2.0 µm in diameter. </li></ul><ul><li>Single celled micro-organisms </li></ul><ul><li>No membrane bound organelles or functional cytoplasmic units such as centrioles </li></ul>
  3. 4. Prokaryotae (Bacteria) <ul><li>A gelatinous capsule , or glycocalyx , formed from polysaccharides, polypeptides or both, surrounds a cell wall . </li></ul><ul><li>Motile bacteria have a flagellum </li></ul>
  4. 6. Prokaryotae (Bacteria) <ul><li>Additional thread like projections called pili assist in the adhesion of two bacteria and the exchange of genetic material. </li></ul>
  5. 7. Prokaryotae (Bacteria) <ul><li>Bacterial DNA found in two locations; in the circular chromosome which may be attached to the cell membrane by the mesosome , and in the much smaller unattached circular plasmids . </li></ul>
  6. 8. Prokaryotae (Bacteria) <ul><li>Ribosomes and inclusion granules may be found throughout the cytoplasm. </li></ul>