Question

The process of plasmolysis in plant cell is defined as: (a) Breakdown of plasma membrane in hypotonic solution. (b) Shrinkage of cytoplasm in hypertonic medium. (c) Shrinkage of Nucleoplasm. (d) None of these.

Answer 1

Answer: Plasmolysis in a plant cell is defined as (b) shrinkage of cytoplasm in hypertonic medium. Explanation: ... Plasmolysis is driven by vacuole. Plasmolysis is a reversible process and addition of hypotonic solution can lead the expansion of protoplast and reinstatement of original turgor pressure.

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Answer 2

Answer:

Plasmolysis can be defined as the shrinkage of cytoplasm in hypertonic medium.

Explanation:

Plasmolysis is the process in which plant cell will lose the water and turgor pressure after being placed in hypertonic solution. During plasmolysis loss of turgor pressure can force the detachment of protoplast from the cell wall which will result into shrinking of protoplast. Plasmolysis is driven by vacuole. Plasmolysis is a reversible process and addition of hypotonic solution can lead the expansion of protoplast and reinstatement of original turgor pressure. During the plasmolysis majority of osmotic water flows into the central vacuole and drastic changes in protoplast size and shape can affect the subcellular architecture of the plant cell.