Explain giving reasons; what will happen if a plant cell is placed in : a)Hypotonic solution b)Hypertonic solution c)Isotonic solution ?

Question

Answer

Answer

If a cell is placed in a hypertonic solution, water will leave the cell, and the cell will shrink. In an isotonic environment, the relative concentrations of solute and water are equal on both sides of the membrane. ... When a cell is placed in a hypotonic environment, water will enter the cell, and the cell will swell..

Answer

1) Hypotonic solutions :--> When the plant cell is placed in the hypotonic solution , it takes up water by osmosis & starts to swell , but the cell wall prevents it from brusting. The plant cell is said to have became 'turgid' i.e swollen & hard.

2) Hypertonic solutions :---> If a plant cell is placed in a hypertonic solution , the plant cell loses water & hence turgor pressure by plasmolysis .

3) Isotonic solutions :---> A cell in an isotonic environment is in a state of equilibrium with its surroundings. Cells isotonic to their surrounding solutions have an equal concentration of solutes in and out of the cell membrane .

$$Hope it's help... $$

Answer

Effects of Different Solutions on Plant Cells

Hypotonic Solution
- A hypotonic solution has a lower solute concentration than the plant cell.
- When a plant cell is placed in a hypotonic solution, water moves into the cell through osmosis.
- The cell membrane and the cell wall of the plant cell expand due to the influx of water.
- The cell becomes turgid or swollen, and the plant appears healthy.
- However, excessive swelling can cause the plant cell to burst, leading to cell death.

Hypertonic Solution
- A hypertonic solution has a higher solute concentration than the plant cell.
- When a plant cell is placed in a hypertonic solution, water moves out of the cell through osmosis.
- The cell membrane and the cell wall of the plant cell shrink due to the loss of water.
- The cell becomes plasmolysed or shriveled, and the plant appears wilted.
- The excessive loss of water can cause the plant cell to die.

Isotonic Solution
- An isotonic solution has an equal solute concentration to the plant cell.
- When a plant cell is placed in an isotonic solution, there is no net movement of water into or out of the cell.
- The cell membrane and the cell wall of the plant cell remain unchanged.
- The cell remains in its normal state, and the plant appears healthy.

Conclusion
In summary, the effects of different solutions on plant cells depend on the solute concentration of the solution relative to the plant cell. A hypotonic solution can cause the plant cell to burst, a hypertonic solution can cause the plant cell to shrink, and an isotonic solution has no effect on the plant cell.

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