Template:POTD/2007-07-23
Picture of the day archives
:
2007 July
<
2007 July 22
2007 July 24
>
Picture of the day
An illustration showing the effects of
osmotic pressure
on
red blood cells
. On the left, the cells are in a
hypertonic
environment, causing water to flow across the
cell membrane
out of the cell. Cells are shown in an
isotonic
environment in the center, and in an
hypotonic
solution on the right.
Image credit:
Mariana Ruiz
Archive
–
More featured pictures...