Transport of water between cells and their environment


Transport of Food And Minerals In Plants - I - Concepts
Class - 8th ICSE Subjects
 
 
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Transport of water between cells and their environment

Transport of water between cells and their environment

What will happen to an animal cell, or a plant cell placed in a sugar or salt solution in water?

  • Osmosis: When the solution of higher water concentration moves into the solution of lower water concentration through a semipermeable membrane, till the concentration on both the sides of the membrane is equal. This process is called osmosis.
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    Sample Questions
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    Question : 1

    Which of the following are correct :

    (a)  In a hypotonic solution, the cell will gain water by osmosis. This is because there is a higher water concentration outside the cell.

    (b)  In a hypertonic  solution, the cell will gain water by osmosis. This is because there is a higher water concentration outside the cell.

    Right Option : A
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    Question : 2

    Which of the following are correct :

    (a)  In a hypotonic solution, the cell will gain water by osmosis because there is a higher water concentration outside the cell.

    (b)  In a hypertonic solution, the cell will gain water by osmosis because there is a higher water concentration outside the cell.

    (c) When the cell is immersed in a hypertonic solution, water will diffuse out of the cell by osmosis.

    Right Option : C
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    Question : 3

    Which of the following are correct :

    (a) The net movement of water is into the cell, due to which the cell increases in volume, or swell up. This is called endosmosis

    (b)  In a hypotonic (dilute) solution, the cell will gain water by osmosis.

    (c)  In a hypertonic (dilute) solution, the cell will gain water by osmosis.

    Right Option : A
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