Meaning of Difusion (What is, Concept and Definition)

What is Difusion:

Difusion refers to the propagation of molecules, solutes, solvents, news, information, thoughts, trends or cultures from one medium to another .

The word diffusion indicates the action of diffusion, derived from the Latin diffusio , composed of the prefix dis -, which means 'separation', and fundere , which indicates 'spilling' or 'melting'.

In physics and chemistry, diffusion refers to the movement of molecules of a substance, gas or liquid, of a smaller medium concentration to a higher concentration, without the additional generation of energy.

The diffusion also indicates the dissemination of ideas, knowledge, culture or news.In this sense, the diffusion of the mentioned elements usually use the media of communication such as the press, television, radio or social networks to spread them to a wider audience.

Diffusion in chemistry

In chemistry, diffusion and s the way in which both solute and solvent pass through permeable membranes from a medium of greater concentration to one of lower concentration until both media reach the same level of concentration.

Diffusion in physics

In physics, diffusion allows the uniform distribution of a substance, gas or body in two media by the spontaneous movement of the molecules.In this sense, diffusion transports them in favor of the concentration gradient.

Diffusion in biology

In biology, diffusion is considered a form of passive cellular transport, since it does not need additional energy to make it happen.Biological diffusion can be divided into simple diffusion and facilitated diffusion.

Simple diffusion

Simple diffusion occurs in substances of low molecular weight such as water (H2O), dissolved gases (O2, CO2) and fat soluble molecules (alcohol ethyl, vitamin A).

Simple diffusion is the passive transport of solutes and solvents by the free movement of the molecules.The diffusion is generated through permeable membranes from a medium of greater concentration to the one of lower concentration until the concentration is equalized.

See also Soluto and solvent.

Facilitated diffusion

The facilitated diffusion of substances requires carriers to transfer membranes of selective permeability.The mediators can be channel proteins or transporter proteins.

Channel proteins are those that can control the opening and closing of the channels located in the double layer of phospholipids of the cytoplasmic membrane and thus cross with the molecules.

In diffusion, the transport proteins bind to the substance and transport it through the membrane in favor of the concentration gradient.

Diffusion and osmosis

Diffusion and osmosis are forms of cell transport.

Diffusion is the transfer of solute and solvent from a more concentrated to a less concentrated medium through permeable membranes.

Osmosis is the passage of the solvent or solvent, such as water, through a semipermeable membrane from the medium where it exists a smaller concentration to a greater concentration.

See also Osmosis.

Dissemination of the printing press

The diffusion of the printing press allowed ideas and knowledge to be transmitted on a massive scale.

The invention of the printing press (or mechanization of printing) by the German Johannes Gutenberg in 1440 gave way to mass production of culture, ideas and knowledge.

The diffusion of the printing press helps the flowering of Renaissance humanism with the free circulation of information, the increase in literacy, the cultural increase and the creation of a new means of communication: the press.

See also Media.