8: Summary

fly eyeI hope you’’ve enjoyed the tours of nanoworld and microworld. In case you’’d like a short list of things to remember, here are some suggestions.

In the microworld:

  • 900 um – fly’s eye
  • 100 um – paper
  • 7 um – red blood cell (on the small side for a plant/animal cell)
  • 1-10 um – bacteria, mitochondria, and chloroplasts

virusAnd in the nanoworld:

  • 100 nm – viruses
  • 10 nm – cell membrane
  • 2 nm – DNA double helix
  • 1 nm – glucose molecule

Learning Outcomes

After completing this module you should be able to:

  • Use appropriate units of length for different measurement contexts (milli-, micro- and nano- worlds)
  • Convert units of length

If you want a printer-friendly version of this module, you can find it here in a PDF document. This printer-friendly version should be used only to review, as it does not contain any of the interactive material, and only a skeletal version of problems solved in the module.

photo credits: fly’s eye |
virus (capsid)