Specification: 1.1.1 Cell Structure

- state the resolution and magnification that can be achieved by a light microscope, a 
   transmission electron microscope and a scanning electron microscope
- explain the difference between magnification and resolution
- explain the need for staining samples for use in light microscopy and electron microscopy
- calculate the linear magnification of an image
- describe and interpret drawings and photographs of eukaryotic cells as seen under an 
   electron microscope and be able to recognise the following structures
      - nucleus
      - nucleolus
      - nuclear envelope
      - rough and smooth endoplasmic reticulum
      - golgi apparatus
      - ribosomes
      - mitochondria
      - lysosomes
      - chloroplasts
      - plasma membrane
      - centrioles
      - flagella
      - cilia
            - outline the functions of the structures listed above
- outline the interrelationship between the organelles involved in the production and 
   secretion of proteins
- explain the importance of the cytoskeleton in providing mechanical strength to cells, aiding 
   transport within cells and enabling cell movement
- compare and contrast, with the aid of diagrams and electron micrographs, the structure of 
   prokaryotic cells and eukaryotic cells
- compare and contrast, with the aid of diagrams and electron micrographs, the structure 
   and ultrastructure of plant cells and animal cells