Definition For Diffusion In Biology
The material that diffuses could be a solid liquid or gas.
Definition for diffusion in biology. Similarly the medium in which diffusion occurs could also be in one of the three physical states. Diffusion is a physical process that refers to the net movement of molecules from a region of high concentration to one of lower concentration. It is the main form of transmission of essential substances such as amino acids between cells. Diffusion helps in the movement of substances in and out of the cells.
It is an important process occurring in all living beings. Furthermore it is defined as a net movement of particles or molecules. Diffusion in biology is considered a passive form of cellular transport since it does not need additional energy for it to occur. 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.
Diffusion is the process of movement of molecules under a concentration gradient. In biological systems it is a type of passive transport.