Plasmolysis occurs when a plant cell is placed:

In a solution that is isotonic to the protoplasm

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In a solution that is hypertonic to the protoplasm

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In a solution that is hypotonic to the protoplasm

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In pure water

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Solution

The correct option is B In a solution that is hypertonic to the protoplasm
Plasmolysis occurs when a plant cell is placed in a solution that is hypertonic to the protoplasm.
Isotonic solutions have same concentration of solutes.
Hypotonic solutions have less concentration of solutes.

Suggest Corrections

Column - I	Column - II
(i) Plasmolysis	(a) Phenomenon when a cell is placed in an isotonic solution
(ii) Cells turgidity	(b) Cytoplasm loses contact with the cell wall
(iii) Flaccid cell	(c) Phenomenon when a cell is placed in a hypotonic solution
(iv) Incipient plasmolysis	(d) Phenomenon when a turgid plant cell is placed in an hypertonic solution