Plasmolysis in a plant cell is defined as

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(C) Plasmolysis is the process where the cytoplasm of a plant cell shrinks away from the cell wall.This occurs when the cell is placed in a hypertonic

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shrinkage of cytoplasm in hypertonic medium

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(C) Plasmolysis is the process where the cytoplasm of a plant cell shrinks away from the cell wall.This occurs when the cell is placed in a hypertonic solution (a solution with a higher solute concentration than the cell sap).Due to the concentration gradient,water moves out of the cell through the process of exosmosis.As water leaves the cell,the protoplast shrinks,causing the cytoplasm to pull away from the cell wall.

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