Prokaryotic Cells

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Prokaryotic Cells

Have no membrane-enclosed internal compartments

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Cell Wall

  • Prokaryotic cell walls provide protection, maintain cell shape, and prevent dehydration

  • Made of peptidoglycan - polymers of sugars linked by short peptides

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Where is DNA stored in a Prokaryotic Cell?

DNA is stored in the region called the nucleoid

This region is not contained by a membrane 

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Some Bacteria have a slimy capsule outside of the cell wall,  this capsule

  • Keeps the Cell from drying out

  • involved in adhesion to other cells

  • protects the cell from detection by host immune system

  • MADE OF POLYSACCHARIDES

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Flagella

  • how some prokaryotes swim, made from the protein flagellin

  • rotated by a complex motor protein embedded in the cell membrane

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Pili

  • hairlike structures projecting from the cell surface

  • They help bacteria adhere to other cells