Difference Between Osmosis and Diffusion
The Difference Between Osmosis and Diffusion is as follows:
Features |
Osmosis |
Diffusion |
---|---|---|
Definition |
Osmosis is the specific type of diffusion that involves the movement of solvent molecules (usually water) through a semipermeable membrane from an area of lower solute concentration to an area of higher solute concentration. |
Diffusion is the general process of particle movement from an area of higher concentration to an area of lower concentration until equilibrium is reached. |
Particles involved |
Typically involves the movement of solvent molecules (e.g., water) across a selectively permeable membrane. |
Involves the movement of any type of particles, such as solute molecules or gases, in a liquid, gas, or solid medium. |
Selective barrier |
Requires a semipermeable membrane to occur, where only certain molecules can pass through. |
Can occur in the absence of a membrane or in an open system where particles can move freely. |
Direction of movement |
Moves solvent molecules from areas of lower solute concentration to areas of higher solute concentration until equilibrium is reached. |
Moves particles from areas of higher concentration to areas of lower concentration until equilibrium is reached. |
Energy requirement |
Generally a passive process that does not require energy input (osmosis is passive transport). |
Typically a passive process, but some types of diffusion, like facilitated diffusion, may involve protein channels and require minimal energy. |
Osmosis
Osmosis is a biological and chemical process in which there is passive movement of solvent molecules from a region of lower solute concentration to a region of higher solute concentration through a semipermeable membrane, thus equalizing solute concentrations on both sides of the membrane. The osmosis process is essential for many biological processes, including the absorption of nutrients and the maintenance of the fluid balance in cells and organisms.
Table of Content
- Osmosis Definition
- What is Osmosis?
- Osmotic Solution
- Types of Osmosis
- Effect of Osmosis on Cell
- Osmotic Pressure
- Significance of Osmosis
- Examples of Osmosis
- Factors Affecting Osmosis
- Variation of Osmosis
- Difference Between Osmosis and Diffusion
- FAQs on Osmosis