What is osmosis?



  • Osmosis is a process in which water moves from a region of high water concentration to a region of low water concentration through a semipermeable membrane. 
  • A semipermeable membrane is a surface that allows the selected substances (in this case water ) to pass through it .
  • This basically means that water will always flow from an area where there is more water to an area where there is less water .
  • In cells, the cell membrane is a semi-permeable membrane and it allows water to move in and out of the cell through osmosis .
  • Plants also take up water from the soil through Osmosis wherein the root has lesser water and the soil has more (due to watering).
  • Thus the water moves from the soil into the roots .
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Maninder Singh

CA Maninder Singh is a Chartered Accountant for the past 14 years and a teacher from the past 18 years. He teaches Science, Economics, Accounting and English at Teachoo