Question
Biology Question on Transport in Plants
A plasmolysed cell can be deplasmolysed by placing it in
A
pure water or hypotonic solution
B
hypertonic solution
C
isotonic solution
D
saturated solution
Answer
pure water or hypotonic solution
Explanation
Solution
The swelling up of a plasmolysed protoplast under the influence of hypotonic solution or water is called deplasmolysis. It is due to endosmosis. Deplasmolysis is possible only immediately after plasmolysis otherwise the cell protoplast becomes permanently damaged. During deplasmolysis water diffuses into protoplast.