Question

What will happen if we put an animal cell or a plant cell into solution of sugar or salt in water ?

Answer 1

The cell will absorb the solution

Answer 2

1. If the medium surrounding the cell has a higher water concentration than the cell, meaning that the outside solution is very dilute, the cell will gain water by Osmosis. Such a solution is called hypotonic solution.

• water molecules are free to pass across the cell membrane in both direction ,but more water will come into the cell then will leave. The net result is that water enter the cell the cell is likely to swell up.

2. If the medium has exactly the same water concentration as the cell, there will be no net movement of water across the cell membrane.Such a solution is known as isotonic solution.

• water process the cell membrane in both direction , but the amount going in is the same as the amount going out , so there is no overall movement of water. the cell will stay the same size.

3. If the medium has a lower concentration of water than the cell, meaning that it is a very concentrated solution, the cell will lose water by Osmosis. Such a solution is known as a hypertonic solution.

• Again,water cross the cell membrane in both direction, but this time more water leaves the cell then enter it. Therefore, the cell will shrink.