1.2  Ultrastructure of Cells

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Essential Idea:

Eukaryotes have a much more complex 

cell structure than prokaryotes

     
Understandings:

  • Prokaryotes have a simple cell structure without compartmentalisation
  • Eukaryotes have a compartmentalised cell structure
  • Electron microscopes have a much higher resolution than light microscopes


Applications:

  • Structure and function of organelles within exocrine gland cells of the pancreas and within palisade mesophyll cells of the leaf
  • Prokaryotes divide by binary fission


Skills:

  • Drawing of the ultrastructure of prokaryotic cells based on electron micrographs
  • Drawing of the ultrastructure of eukaryotic cells based on electron micrographs
  • Interpretation of electron micrographs to identify organelles and deduce the function of specialised cells