Diffusion Meaning

What is Diffusion:

Diffusion 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 spreading, derived from the Latin diffusiocomposed of the prefix dis-, which means ‘separation’, and I will meltwhich indicates ‘to pour out’ or ‘to melt’.

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

Diffusion also indicates the dissemination of ideas, knowledge, culture or news. In this sense, the dissemination of the aforementioned elements usually uses the media, such as the press, television, radio or social networks to spread them to a broader audience.

diffusion in chemistry

In chemistry, diffusion is the way in which both solute and solvent cross permeable membranes from a medium of higher 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 molecules. In this sense, diffusion transports them down the concentration gradient.

diffusion in biology

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

plain diffusion

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

You may be interested:  Meaning of Corroborate

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

See also solute and solvent.

facilitated diffusion

Facilitated diffusion of substances requires transporters to cross permeability-selective membranes. Mediators can be channel proteins or transporter proteins.

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

In diffusion, carrier proteins bind to the substance and transport it across the membrane down 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 medium to a less concentrated one through permeable membranes.

Osmosis is the passage of the solvent or solvent, such as water, through a semi-permeable membrane from the medium where there is a lower concentration to a higher concentration.

See also Osmosis.

diffusion of the printing press

The spread 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 ushered in the 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.

You may be interested:  Chemical Nomenclature

See also Media.