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(B) When a $Spirogyra$ filament is placed in a $10\%$ potassium nitrate solution (a hypertonic solution),water moves out of the cell due to exosmosis,

Vedclass · Accepted Answer

The protoplasm will swell and return to its original size due to deplasmolysis.

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(B) When a $Spirogyra$ filament is placed in a $10\%$ potassium nitrate solution (a hypertonic solution),water moves out of the cell due to exosmosis,causing the protoplasm to shrink away from the cell wall,a process known as plasmolysis.When this plasmolyzed filament is transferred to distilled water (a hypotonic solution),water enters the cell due to endosmosis.This causes the protoplasm to swell and return to its original size,a process known as deplasmolysis.

When a freshly collected $Spirogyra$ filament is kept in a $10\%$ potassium nitrate solution,it is observed that the protoplasm shrinks in size. What will happen if the filament is replaced in distilled water?

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