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if turgor pressure becomes equal to the wall pressure then water leaves the cell water enters the cell no exchange of water takes place solute goes from the cell into water

if turgor pressure becomes equal to the wall pressure then
  1. water leaves the cell
  2. water enters the cell
  3. no exchange of water takes place
  4. solute goes from the cell into water

Grade:12th pass

1 Answers

Apoorva Arora IIT Roorkee
askIITians Faculty 181 Points
9 years ago
A physical phenomenon known asosmosiscauses water to flow from an area of low solute concentration to an area of high solute concentration until the two areas have an equal ratio of solute to water. Normally, the solute diffusestoward equilibrium as well; however, all cells are surrounded by alipid bilayercell membrane which permits the flow of water in and out of the cell but restricts the flow of solute under many circumstances. As a result, when a cell is placed in ahypotonicsolution, water rushes into the membrane, increasing the cell's volume.
Eventually, the cell's membrane is enlarged such that it pushes against the cell's rigidwall. At this point the cell is said to beturgid.In an isotonic solution, water flows into the cell at the same rate it flows out. The pressure pushing the cell's membrane against its wall is reduced and the cell is said to be 'flaccid'. When a cell is placed in hypertonic solution water actually flows out of the cell into the surrounding solution. This,plasmolysis, causes the membrane to recede from the wall and is responsible for wiltingin plant cells. so option 3 is correct.

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