What is the diffusion short answer?
Diffusion is the movement of a substance from an area of high concentration to an area of lower concentration . Diffusion occurs in liquids and gases when their particles collide randomly and spread out. Diffusion is an important process for living things – it is how substances move in and out of cells.
What is diffusion in biology?
Diffusion is the net movement of molecules from an area where they are at a higher concentration to areas where they are at a lower concentration. The difference in the concentration of a substance between two areas is called the concentration gradient .
What is diffusion example?
Diffusion is a physical process that refers to the net movement of molecules from a region of high concentration to one of lower concentration. For instance, a gas diffuses very quickly in another gas. An example of this is the way the noxious smell of ammonia gas spreads in air.
What is a simple definition of diffusion?
Diffusion, process resulting from random motion of molecules by which there is a net flow of matter from a region of high concentration to a region of low concentration. A familiar example is the perfume of a flower that quickly permeates the still air of a room.
Is Sweating an example of diffusion?
Diffusion of water, salts, and waste products occurs in the kidneys. Heat from the body diffuses away in the form of sweat that evaporates. The advantage of diffusion is that it does not require as much energy to regulate, as opposed to a cell having to make proteins that pump molecules across a membrane.
What is the most common definition of diffusion?
1 : the act of spreading or allowing to spread freely. 2 : the mixing of particles of liquids or gases so that they move from a region of high concentration to one of lower concentration. diffusion.
Which one is a type of diffusion?
Diffusion can be classified into two main types: Simple diffusion and facilitated diffusion.