THE CELL
TRANSPORT INTO AND OUT OF THE CELL
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Pulling away of the plant cell membrane as it loses water in a hypertonic solution.
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Pulling away of the animal cell membrane as it undergoes osmosis.
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An increase in turgor pressure as the cell undergoes osmosis.
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Contraction of the protoplast of a plant cell as a result of gaining water.
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Detailed explanation-1: -Plasmolysis is defined as the process of contraction or shrinkage of the protoplasm of a plant cell and is caused due to the loss of water in the cell. Plasmolysis is an example of the results of osmosis and rarely occurs in nature.
Detailed explanation-2: -Plasmolysis is the process in which cells lose water in a hypertonic solution. The reverse process, deplasmolysis or cytolysis, can occur if the cell is in a hypotonic solution resulting in a lower external osmotic pressure and a net flow of water into the cell.
Detailed explanation-3: -When a plant cell is placed in a hypertonic solution, the plasma membrane breaks down. As a result of the low concentration of water outside the cell, the cell loses water and shrinks. This is known as exosmosis.
Detailed explanation-4: -Plasmolysis is the process in which cells lose water when they are placed in a hypertonic solution. It causes contraction or shrinking of the plasma membrane away from the cell wall.
Detailed explanation-5: -In a hypertonic solution, a cell with a cell wall will lose water too. The plasma membrane pulls away from the cell wall as it shrivels, a proces s called plasmolysis.