IMG_0004_NEW_0003

IMG_0004_NEW_0003 - remember that these terms do not...

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Some comparative terms are used to describe the relative concentrations of solutes on both sides of a selectively permeable membrane. A solution that is more concentrated than the cell contents is said to be hypertonic to the cell. A solution less concentrated is said to be hypotonic to the cell. A solution of equal concentration to the cell contents is said to be isotonic to the cell. Remember that these terms are comparative terms, i.e. they compare one solution to another. You cannot describe a solution alone as being hypertonic - it must be hypertonic to some reference solution. It is also important to
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Unformatted text preview: remember that these terms do not explain the osmotic process. They just describe the relative ionic concentrations on two sides of a selectively permeable membrane. So what will happen if you place red blood cells, which have an internal solute concentration approximately equivalent to O.85Vo NaCl, in saturated NaCI solution and in pure distilled water? Using the concept of entfopy and free enerry, predict and explain what will happen....
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This note was uploaded on 12/29/2011 for the course MBB 222 taught by Professor Briscoe during the Fall '10 term at Simon Fraser.

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