Question

Explain osmosis. What happens when a cell is kept in hypotonic, hypertonic and isotonic solution. Draw diagram also.​

Answer 1

Answer:

1)osmosis is the movement of water molecules from a solution with a high concentration of water molecules to a solution with a lower concentration of water molecules, through a cell's partially permeable membrane.

2)If a cell is placed in a hypertonic solution, water will leave the cell, and the cell will shrink. In an isotonic environment, there is no net water movement, so there is no change in the size of the cell. When a cell is placed in a hypotonic environment, water will enter the cell, and the cell will swell

Explanation:

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Answer 2

OSMOSIS -

• The water movement is due to the concentration gradient through a membrane.
• It involves diffusion from low concentration to high concentration area.
• The rate of diffusion of water depends on the temperature.
• There are three types of solution namely -

1. Hypotonic Solution - Water concentration in the solution is higher than in the cell. The cells when kept in a hypotonic solution, swells and tend to burst.
2. Hypertonic Solution - Water concentration is low in solution as compared to the cell. Cell shrink when kept in hypertonic solution.
3. Isotonic Solution - The concentration of water is the same in solution and inside the cell. No change in the shape and size of the cell is observed. Example - Blood is isotonic.