Isotonic concentration??

3

Posted on : 25-03-2014 | By : My Study Coach | In : Improve Your Concentration
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What does that mean?? What is isotonic concentration??? I’m so confused!!!!!!!

Can anyone help me please?????
oh, sorry, if you could also explain osmolarity it would be great!

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Comments (3)

It means the concentration at which the amount of solute is the same on both sides of a semi-permeable membrane, i.e. the cell membrane, and thus osmotic pressure is balanced.

Isotonic concentration means having the same osmolarity. Each solute (ions or uncharged molecules) exerts osmotic pressure, and contriubutes to osmolarity. Saline (0.15M NaCl, or 0.85% NaCl) is an isotonic solution. That means it has the same osmolarity as blood.

The concentration of a solution equal to that of cell sap is called isotonic. When a cell is placed in a isotonic solution there is no movement of solovent molecules into the cell or out of the cell.

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