Osmosis Question (Another Red Blood Cell for Pre-AP Bio)

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Red blood cells are approximately 0.25% salt. Red blood cells are placed in distilled water, what happens? Will the environment of the cell be hypotonic, hypertonic, or isotonic? Will the actual cell be hypotonic, hypertonic, or isotonic? Will water flow in or out of the cell? Then will the cell get larger, smaller, or will it stay the same in size?  

Oct 4th, 2015

Thank you for the opportunity to help you with your question!

Distilled water has 0% salt content. It is relatively pure. When the red blood cells are placed inside the distilled water, They draw in water through osmosis and swell, getting larger.

The environment (Distilled water) is hypotonic

The actual cell is hypertonic

Water will flow into the cell

The cell will get larger 

Please let me know if you need any clarification. I'm always happy to answer your questions.
Oct 4th, 2015

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