Why is the rapid plasmolysis caused by a hype | vedclass

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Question

(C) Plasmolysis occurs when a cell is placed in a hypertonic solution,causing water to move out of the cell due to osmosis,leading to the shrinkage of

Vedclass · Accepted Answer

$KCl$ slowly enters into the cell

Vedclass · Answer

(C) Plasmolysis occurs when a cell is placed in a hypertonic solution,causing water to move out of the cell due to osmosis,leading to the shrinkage of the protoplast. When a cell is placed in a $KCl$ solution,$KCl$ acts as a solute that can slowly permeate the cell membrane. Initially,the external concentration of $KCl$ is higher,causing rapid water loss (plasmolysis). However,as $KCl$ ions slowly enter the cell,the osmotic potential inside the cell decreases. This allows water to re-enter the cell,leading to the reversal of plasmolysis (deplasmolysis).

Why is the rapid plasmolysis caused by a hypertonic $KCl$ solution reversed?

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