As an aficionado of the sciences, I have grown to appreciate the size of the molecular world and all that's in it. And its amazing to see how different microscopic organisms and molecules relate to each other. However at times that may become difficult when your dealing with units like nanometers. I mean how in the world do you relate to a nanometer! (yes I know its 10^-9 meters), but most of us lack any intuitive sense of what it is.So ever wonder how the size of an atom compares to say a hemoglobin, or even a chromosome to a blood cell? Egg to a sperm? Well wonder no more.
The Genetic Science Learning Center at the University of Utah put together this amazing model on the relative size and scales of the microscopic world. Cell Size and Scale
Even more so, check out:
Inside a Cell
http://learn.genetics.utah.edu/content/begin/cells/insideacell/
The Sympathetic System (Fight of Flight Response)
http://learn.genetics.utah.edu/content/begin/cells/cellcom/
Cell Communication
http://learn.genetics.utah.edu/content/begin/cells/signals/
Wondering how they look in real life?
Red Blood Cells (above) and Purkinge Neurons (below)- Courtesy of Wellcome Images
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