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GCSE Biology - Osmosis #8

Cognito・2 minutes read

Osmosis is the movement of water molecules across a membrane from high to low concentration, driven by differences in water concentration. This process is essential in cells where water moves through the membrane to equalize concentrations.

Insights

  • Osmosis involves the movement of water molecules across a semi-permeable membrane from high to low water concentration, driven by the varying concentration of solutes in the solution.
  • The process of osmosis is crucial for maintaining the balance of water inside and outside cells, ensuring that water flows to areas of lower concentration to regulate cell volume and prevent excessive swelling or shrinkage.

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Recent questions

  • What is osmosis?

    The net movement of water molecules across a membrane.

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Summary

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Understanding Osmosis in Cell Membranes

  • Osmosis is defined as the net movement of water molecules across a partially permeable membrane from an area of higher water concentration to an area of lower water concentration. Water concentration refers to the proportion of water compared to solutes dissolved in it, determining the concentration.
  • In cells, osmosis occurs when there is a difference in water concentration between the inside and outside of the cell, leading water particles to move from an area of higher water concentration to an area of lower water concentration through the cell's partially permeable membrane.
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