Memory Anchor:

• Super Challenge:

  Stretch:

  Challenge:

Key Questions:

1. How has microscopy developedi over time?
   • More powerful, better quality light microscopes, and then electron microscopes.
2. What impact has the development of the electron microscope had on our knowledge of cells?
   • Electron microscopes can be used to study Cells in much finer detail. This has enabled biologists to see and understand many more sub-Cellular structures.
3. How has electron microscopy been able to increase our understanding of sub-cellular structures?
   • Electron microscopes have a magnification of up to x1,000,000 and resolution of up to 0.2nm.
4. Why is an electron microscope better than a light microscope?
   • An electron microscope has much higher magnification and resolving power than a light microscope.