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Question
When a plasmolysed cell is placed in a hypotonic solution then water will move inside the cell. Which force causes this?
When a plasmolysed cell is placed in a hypotonic solution then water will move inside the cell. Which force causes this?
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Solution
The correct option is A DPD
The DPD or diffusion pressure deficit represents the water absorbing capacity of a cell. It is given by, DPD = osmotic pressure (OP)- turgor pressure (TP). Since turgor pressure is negative in a plasmolysed cell the DPD will be high (maximum). This will cause water to enter into the cell when it is placed in a hypotonic solution. The entry of water will stop only when the cell is fully turgid. In such condition, the OP and Tp will be equal and hence DPD will be 0. Therefore, DPD determines the ability of the cell to absorb water. So, the correct option is ' DPD'.
The DPD or diffusion pressure deficit represents the water absorbing capacity of a cell. It is given by, DPD = osmotic pressure (OP)- turgor pressure (TP). Since turgor pressure is negative in a plasmolysed cell the DPD will be high (maximum). This will cause water to enter into the cell when it is placed in a hypotonic solution. The entry of water will stop only when the cell is fully turgid. In such condition, the OP and Tp will be equal and hence DPD will be 0. Therefore, DPD determines the ability of the cell to absorb water. So, the correct option is ' DPD'.
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