Biology · Foundation

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Cell membranesRunning
Osmosis chamber. Saline added at 0.64 g/L. Internal concentration 0.19 %, External concentration 0.9 %. Currently internal concentration is short by 0.708 %.TUNINGWATER POTENTIALCELL PRESSURESELECTIVE MEMBRANE
t = 0.0s

Internal concentration

0.19%

External concentration

0.9%

0.64 g/L

Osmosis chamber. Saline added at 0.64 g/L. Internal concentration 0.19 %, External concentration 0.9 %. Currently internal concentration is short by 0.708 %.

What has to balanceΨin=Ψout\Psi_{in} = \Psi_{out}

What is happening

You arrive at a tissue sample being kept alive during transport to a burns unit.

The cells are swelling and will burst. The fluid around them sits at 0.9% solute, and the saline going into the container adds 0.3% for every gram per litre.