What are the conditions for osmosis?

By Ritesh|Updated : September 4th, 2022

Osmosis is the movement of molecules from a higher concentration region to a lower concentration region until the concentrations become equal on either side of the membrane. It is a passive process that happens without spending any energy. Any solvent, including supercritical liquids and gases, can undergo the process. Osmosis is of two types:

  • Endosmosis– If a substance is placed in a hypotonic solution, the solvent moves inside the cell, which becomes turgid and undergoes deplasmolysis. It is known as endosmosis.
  • Exosmosis– If a substance is placed in a hypertonic solution, the solvent moves outside the cell, which becomes flaccid and undergoes plasmolysis. It is known as exosmosis.

Significance of Osmosis

  • The release of metabolic waste products and transport of nutrients is influenced by osmosis.
  • It is responsible for the water absorption from the soil and conducts it to the upper parts through the xylem.
  • The internal environment of an organism is stabilized by maintaining the balance between intercellular fluid and water levels.
  • It maintains cell turgidity.
  • It is a process in which plants maintain their water content apart from water loss because of transpiration.
  • It controls cell-to-cell water diffusion.
  • It induces cell turgor that regulates the plant and plant parts' movement.
  • It controls the dehiscence of sporangia and fruits.

Summary:

What are the conditions for osmosis?

The conditions for osmosis are, that the two solutions should have different concentrations, and the membrane separating the solutions should be semi-permeable. High osmotic pressure protects plants from drought injury.

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