BLOOD CELLS!

[hyelinz]

i dunno if im putting this under the right catagory or what .. im really new at this :]

but my question is What would happen to blood cells when you add disted water to the cell?

Where is the hypotonic solution and which direction would osmosis tend to occur, into or out of the cells?

[mith]

Do you understand the definition of hypertonic/hypotonic? Try our dictionary. The definition should answer your question.
http://www.biology-online.org/dictionary.asp

[asutoshsahu]

I think the distled water has more solvent concentration than blood as in bloodplasma there are many particles like proteins , RBC , WBC , Platelets etc.

So when u add distled water to blood cell the blood will be hypotonic solution as the solvent concn. is less than the surrounding.
The membrane of the blood cell will act as a semi permeable membrane.
So osmosis will take place in which the solvent molecules will move from lower solute concentration to higher solute concn i.e. from the outer distled water to inner blood cell. so the blood cell will swell.

I hope now u can understand the theory well.

[sdekivit]

quote asutoshsahu:

I think the distled water has more solvent concentration than blood as in bloodplasma there are many particles like proteins , RBC , WBC , Platelets etc.

no, RBC has more solventconcentration then distilled water (slution with equal osmolarity as the RBC is physiologic saltconcentration: 0,9% NaCl). The statement above strokes with your explanation below. Because the RBC contain more solventconcentration the water from distilled water will move into the RBC to get an equal saltconcnetration inside and outside –> thus the cell will lyse.

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