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Difference between Endosmosis and Exosmosis

Difference between Endosmosis and Exosmosis

Endosmosis and exosmosis are two types of diffusion. They are both types of passive transport, but they occur in different ways. endosmosi is when asoluted molecules move through a semipermeable membrane from an area of high concentration to an area of low concentration. exosmosis is the opposite- when molecules move from an area of low concentration to high concentration. In this post, we will explore the differences between these two types of diffusion. We will also look at some examples to help you understand them better. Stay tuned!

What is Endosmosis?

  • Endosmosis is a process in which molecules of a solvent pass through a semipermeable membrane from an area of low solute concentration to an area of high solute concentration. In simple terms, it’s when molecules naturally move from areas of lower concentration to areas with higher concentration without having to be filtered or forced.
  • This process is used on a much larger scale for reverse osmosis systems, which are used for purifying drinking water. Endosmosis is also found in plants and single-celled organisms like bacteria as they absorb their sustenance via their cell walls.
  • It plays an important role in maintaining homeostasis, ensuring that particles within the body need not be manually moved from one place to another to keep the environment balanced and remain healthy.

What is Exosmosis?

  • Exosmosis is an important process that occurs in nature and has many real-world applications. In its most basic form, it involves the movement of a solvent, such as water, from a region of lower solute concentration to a region of higher solute concentration.
  • This equalizes the number of solutes between two systems or areas by allowing the solvent molecules to pass through a membrane while blocking the movement of other particles.
  • Exosmosis is often utilized by cells in order to maintain balance within their environment and regulate osmotic pressure. It is also used in industries such as water purification and food production where it removes contaminants from liquids or concentrated ingredients are produced via reverse osmosis techniques. Ultimately, exosmosis is an essential process for establishing equilibrium within our world.

Difference between Endosmosis and Exosmosis

Endosmosis and exosmosis are complimentary processes that regulate the movement of molecules and ions, primarily water, through natural or artificial permeable membranes.

  • Endosmosis is the movement of molecules from an area of greater solute concentration to an area of lesser solute concentration until the two areas reach equilibrium. On the other hand, exosmosis is the movement of molecules in a solution opposite osmotic pressure.
  • In other words, it is the transportation of molecules from an area of low solute concentration to one of high solute concentration until equilibrium is reached.
  • Both endosmosis and exosmosis help maintain homeostasis (balance) and fluid levels in your body’s cells by regulating what substances stay inside or leave cells through natural barriers such as cell walls. The delicate balance between these two processes is vital for optimal health outcomes and maintaining balance within the entire body.


Simply put, endosmosis is when a solvent moves into a solute while exosmosis is when a solute moves out of a solvent. In terms of plant cells, water molecules will move in and out of the cell through osmosis depending on the concentration levels of each side. Now that you know the difference between these two processes, you can apply this knowledge to your biology studies or future career in botany!

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