Question

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What happens when RBCs are kept in concentrated salt solution? ​

Answer 1

Red blood cells placed in a solution with a lower water concentration compared to their contents (eg 1.7 per cent salt solution) will lose water by osmosis and shrink. Water will diffuse from a higher water concentration inside the cell to a lower water concentration outside the cell.

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Answer 2

An If the salt solution is hypotonic with respect to RBCs (that is salt solution is rarer in osmotically active particles than intracellular plasma) then the water molecules will osmosis into the RBCs from the solution and it might lead to rupturing of RBCs.

If the salt solution is hypertonic (opposite of hypotonicity) then the water molecules will osmosis out of the RBCs leading to plasmolysis (extensive shrinkage of RBCs due to hypertonic environment).swer:

Explanation:

In case of hypertonic solution the RBC will shrink. This is due to exosmosis. The salt solution outside is more concentrated as compared to the RBC and thus the water flows outside the RBC. This causes it to shrink.

If the salt concentration is lower as compared to that of the RBC, the RBCs will swell up and may burst due to endosmosis.

If the concentration is the same s that of the RBC then there will be no change.