Relationship of diffusion and osmosis

Difference Between Osmosis and Diffusion (with Comparison Chart) - Bio Differences

relationship of diffusion and osmosis

What's the difference between Diffusion and Osmosis? Osmosis is the result of diffusion across a semipermeable membrane. If two solutions of different. Water will move by osmosis from the area or side with higher water potential to the area or side with lower water potential until the water. The fundamental difference between the two is – Osmosis is the movement of the solvent (water) from a region of higher concentrations to the.

If you place a drop of red food colouring in a beaker of water eventually the entire beaker of water will have a red tint. The food colouring moved through the water until it was equally distributed throughout the beaker.

What is the relationship between diffusion and concentration gradient?

Diffusion takes place along a concentration gradient. A concentration gradient exists until the diffused substance is evenly distributed. Other everyday examples of diffusion are: Sugar will diffuse through tea until the entire cup of tea is sweet.

relationship of diffusion and osmosis

We stir the tea to speed up the diffusion. The odour of food cooking diffuses throughout the kitchen. If you open the kitchen door it will spread into the next room.


The movement of these molecules is said to be passive. No energy is needed to be provided.

Osmosis and Diffusion

The natural kinetic energy of the particles supplies the energy. Examples of diffusion in science are: Carbon dioxide entering the stomata of leaves. Oxygen diffusing out of the stomata and lenticels of leaves. This animation shows the purple molecules diffusing throughout the box: This animation shows a graduated cylinder.

relationship of diffusion and osmosis

Note how the bromine diffuses throughout the cylinder when the glass plate it removed: It is the diffusion of a substance through a semipermeable membrane from a more dilute solution to a more concentrated solution. This process is also passive since no external energy is needed.

Diffusion sees molecules in an area of high concentration move to areas with a lower concentration, while osmosis refers to the process by which water, or other solvents, moves through a semipermeable membrane, leaving other bits of matter in its wake. For example, oxygen diffuses into red blood cells, and salt placed outside a cell will draw out the cell's water through osmosis, dehydrating it.

the similarities and differences of diffusion and osmosis by shelby latham on Prezi

While they seem similar, they have different mechanisms of action and purposes in Earth's many species. Diffusion Follows a Downhill Concentration Gradient Gases and substances dissolved in a liquid diffuse from an area of high concentration to one of low concentration.

  • Osmosis and Diffusion

For example, if you spray perfume into the air, the volatile perfume molecules will spread out in the air from the concentrated point of origin. Diffusion also takes place with or without a permeable membrane in a liquid, such as water.

Difference Between Osmosis and Diffusion

Diffusion of small molecules across plant or animal cell membranes follows a concentration gradient. Osmosis undertakes in liquid medium only, whereas the process of diffusion undertakes in any medium solid, liquid and gases.

relationship of diffusion and osmosis

Water is only the diffusing molecule in osmosis; On the other hand, the movement can be in solid, liquid, or gases in the process of diffusion. Osmosis is a slow process and diffusion is the fast process. Osmosis is dependent on one solvent to the another for the reduction of free energy, whereas in the case of diffusion the movement of molecules is from the area of their higher free energy to the area of the lower free energy.

The process of osmosis is important in animals in maintaining the water at the cellular level, in transporting the nutrients, cell-cell diffusion.

In plants, it is helpful in the maintenance of the turgidity, provides mechanical support, prevents excess water loss, and responsible for absorption of water from the soil.

relationship of diffusion and osmosis

Whereas the process of diffusion is important in animals at the time of creating energy, during respiration it helps in exchange of gases, while in plants it is also helpful in the process of transpiration and photosynthesis.