Definition Of Diffusion A Level

For diffusion to occur there must be a concentration gradient.

Definition of diffusion a level. The material that diffuses could be a solid liquid or gas. In a solution or gas that has an area of high numbers of particles and an area of lower numbers of particles the particles will diffuse or move from the area of higher to the area of lower. This kind of proliferation is known as spatial diffusion. Diffusion is a result of the kinetic properties of particles of matter.

Diffusion occurs due to the random movement of particles. Similarly the medium in which diffusion occurs could also be in one of the three physical states. Diffusion may also be thought of as the movement of particles down a concentration gradient. Diffusion definition diffusion is the net passive movement of molecules or particles from regions of higher to regions of lower concentration.

It usually happens due to a concentration gradient meaning that molecules move from an area of high concentration to an area of lower concentration. An example is shown in the image above. The particles will mix until they are evenly distributed. Diffusion is the net passive movement of particles atoms ions or molecules from a region in which they are in higher concentration to regions of lower concentration.

Some major examples of diffusion in biology. Diffusion is the movement of a fluid from an area of higher concentration to an area of lower concentration. The dissimilarity in the amounts of solutes particles or molecules between the two regions will cause them to move between the two regions. Diffusion is driven by a gradient in concentration.

In the cell this can occur when small molecules diffuse through the pore of a cell membrane or when substances move within the cytosol. Diffusion is the net movement of anything for example atom ions molecules from a region of higher concentration to a region of lower concentration. The three main types of this phenomenon are expansion diffusion stimulus diffusion and relocation diffusion. In geography the term diffusion refers to the spread of people things ideas cultural practices disease technology weather and other factors from place to place.

Diffusion this a level biology section of revision science explains diffusion and includes the rate of diffusion formula. Diffusion definition diffusion is a physical process that refers to the net movement of molecules from a region of high concentration to one of lower concentration.