| Value |
2100
µm^2/sec
Range: Table - link µm^2/sec
|
| Organism |
Generic |
| Reference |
Stein, Wilfred D., Channels, carriers and pumps An introduction to Membrane Transport, 1990 Academic press inc. Harcourt Brace Jovanovich, Publishers p.32 table 2.1 |
| Primary Source |
R. Hober (1967) "Physical Chemistry of cells and tissues" Churchill, London AND Daniels and Alberty (1961) "Physical Chemistry" Wiley, New York |
| Comments |
"In the early 1900s Albert Einstein showed that there is a simple relation between the diffusion coefficient, D, of a substance and the time, t, that it takes to diffuse an average distance, d, in a fluid medium. The relation for diffusion in one dimension is d^2=2 Dt. Now for glucose diffusing in water at room temperature, D is 6×10^-6 cm^2/Sec (see Table 2.1 for a listing of diffusion coefficients). This means that glucose takes about 0.08sec to diffuse across an intestinal cell [of length 10 micrometers (µm)]." Table gives Molecular/Ionic weight and Diffusion coefficients (in 10^-5 cm^2/sec) of various substances in specified temperatures. See BNID 106703 |
| Entered by |
Uri M |
| ID |
104087 |