Write the 5 Difference between Osmosis and Diffusion Class 9

State the Difference between Osmosis and Diffusion for Class 9  :

Osmosis and Diffusion are two different types of transport and both are completely different from each other. In this article we explain all their difference between Osmosis and Diffusion so that you can distinguish them perfectly in your preparation. Before starting lets know about what is Osmosis and Diffusion the we will see the difference between osmosis and diffusion for class 9 in tubular form.


What is osmosis?

Osmosis is a natural process in which two liquids are mixed together through a semi-permeable membrane. A semi-permeable membrane allows certain atoms and molecules to pass through (such as water molecules), but not others (such as salt molecules). In osmosis, the polluted water flows through this semi-permeable membrane to the liquid with the lower concentration. This continues until an equilibrium is reached in the percentage of solutes on both sides of the membrane. This percentage will never completely equalize because the water volume increases on the side of the membrane where the water flows. This causes the pressure on that side to increase. If that pressure is high enough to stop the flow of water through the membrane, the process comes to a standstill. This pressure is called the osmotic pressure.


What is Diffusion?

Diffusion is defined as the process of transport of molecules from a high concentration to low concentration. The Substances move from higher concentration to a lower concentration until the concentration becomes equal throughout any living cell. There are two types of diffusion: Simple diffusion and facilitated diffusion. Simple diffusion is the physical process in which the substance moves through with the help of semipermeable membrane or we can say without any help of transport proteins.  For example, Movement of water and oxygen into the cytoplasm through simple diffusion. Facilitated diffusion is a passive movement of molecules through semi-permeable membrane from higher concentration to the lower concentration with the help of carrier protein molecule.


Difference between Osmosis and Diffusion Class 9

Osmosis Diffusion
It only occurs between two liquid solutions. It can occur in any medium, regardless of whether it is solid, liquid or gaseous.
It only involves the transport of solvent molecules, never solutes. Involves the transport of any type of particle, including both solutes and solvents
Osmosis is a passive process. Osmosis is a passive process.
Osmosis requires water for movement of Particles. Diffusion does not require water for movement of Particles.
In Osmosis the flow of Particles occurs only in one direction. In Diffusion the flow of particles occurs in All directions.
It requires semi-permeable membrane. It occurs without semipermeable membranes or barriers of any kind.
Turgor and hydrostatic pressure oppose osmosis. Hydrostatic pressure and turgor, in general, do not affect diffusion.
Osmosis occurs in only similar types solutions. Diffusion occurs in both similar and different types of Solutions.
Osmosis depends mainly on the number of solute potential. Diffusion Does not depend on solute potential, pressure potential, or water potential.
Osmosis does not helps in the uptake of minerals and nutrients It helps in the uptake of minerals and nutrients
The concentration of the solvent does not become equal on both sides of the membrane. The concentration of the diffusion substance equalizes to fill the available space.