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What happens when we place the blood cell in saline water solution?

What happens when we place the blood cell in saline water solution?

Grade:12

1 Answers

Saurabh Kumar
askIITians Faculty 2411 Points
5 years ago
A solution with salt concentration of 0.848% is isotonic solution (normal saline, osmotic pressure equal to body fluid). Solution with lower salt concentration are hypotonic (low osmotic pressure than body fluid ) while solutions with higher salt concentration are hypertonic (high osmotic pressure than body fluid).
If you put RBC in isotonic solution, nothing will happen & RBC will retain its normal shape, due to osmotic prssure of fluids being equal inside and outside the membrane.
If you put RBC in hypotonic solution, water from the solution enter RBC due to endosmosis. As a result, RBC will swell and burst. The resultant RBC membrane (contents are released due to bursting of plasma membrane) is called red cell ghost and is used in membrane research.

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