Difference between revisions of "Sizes of things"
From Organic Design wiki
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| − | + | == Cells == | |
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*10<sup>14</sup> (100 trillion) [[w:Cell (biology)|cells]] in the Human body | *10<sup>14</sup> (100 trillion) [[w:Cell (biology)|cells]] in the Human body | ||
*A typical cell size is 10μm, (0.01mm) some [[w:pollen|pollen]] is a bit smaller than that but is made of several cells. The [[w:Cell membrane|cell membrane]] (wall) is about 10nm thick for animals cells. | *A typical cell size is 10μm, (0.01mm) some [[w:pollen|pollen]] is a bit smaller than that but is made of several cells. The [[w:Cell membrane|cell membrane]] (wall) is about 10nm thick for animals cells. | ||
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''Human cell with nucleus, about 30,000 atoms in diameter, the pores are about 200 atoms diameter, the ribosomes about twice that'' | ''Human cell with nucleus, about 30,000 atoms in diameter, the pores are about 200 atoms diameter, the ribosomes about twice that'' | ||
| − | + | == Atoms == | |
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*The [[w:angstrom|Angstrom]] is 0.1nm and is rougly the size of a typical atom (0.5A for Hydrogen to 3.8A for Uranium). | *The [[w:angstrom|Angstrom]] is 0.1nm and is rougly the size of a typical atom (0.5A for Hydrogen to 3.8A for Uranium). | ||
*The distance between carbon atoms in β sheets in enzymes etc is roughly 5A (0.5nm). | *The distance between carbon atoms in β sheets in enzymes etc is roughly 5A (0.5nm). | ||
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*The pores on the nucleus would have about 600 atoms around their opening. | *The pores on the nucleus would have about 600 atoms around their opening. | ||
| − | + | == See also == | |
| − | + | *http://learn.genetics.utah.edu/content/begin/cells/scale ''- excellent simulation with sliding scale'' | |
| − | + | *http://micro.magnet.fsu.edu/primer/java/scienceopticsu/powersof10 | |
| − | + | *http://www.mpibpc.mpg.de/groups/de_groot/presentations/Madrid2003/aqp1_system_movie.html ''- this is an unbelievable simulation of how water molecules are transmitted thru a membrane. this clip actually happens in ''10 ns''! | |
| + | [[Category:nad]] | ||
Revision as of 19:08, 1 November 2009
Cells
- 1014 (100 trillion) cells in the Human body
- A typical cell size is 10μm, (0.01mm) some pollen is a bit smaller than that but is made of several cells. The cell membrane (wall) is about 10nm thick for animals cells.
- The cell nucleus is 11-22μm and is typically about 10% of the total volume, so the cell would have to be about 50-100μm. Typical mammalian cell nucleaus has 3000-4000 pores of 100nm diameter.
- Animal cells are on the borderline of visibility, they can be seen but only as a spec of dust.
|  E-coli single-cell organisms |
Human cell with nucleus, about 30,000 atoms in diameter, the pores are about 200 atoms diameter, the ribosomes about twice that
Atoms
- The Angstrom is 0.1nm and is rougly the size of a typical atom (0.5A for Hydrogen to 3.8A for Uranium).
- The distance between carbon atoms in β sheets in enzymes etc is roughly 5A (0.5nm).
- This would make the cell nucleus in the region of 30,000 atoms diameter, and the animal cell 150,000 atoms.
- The pores on the nucleus would have about 600 atoms around their opening.
See also
- http://learn.genetics.utah.edu/content/begin/cells/scale - excellent simulation with sliding scale
- http://micro.magnet.fsu.edu/primer/java/scienceopticsu/powersof10
- http://www.mpibpc.mpg.de/groups/de_groot/presentations/Madrid2003/aqp1_system_movie.html - this is an unbelievable simulation of how water molecules are transmitted thru a membrane. this clip actually happens in 10 ns!
