Question

what is simple diffusion​

Answer 1

Answer:

Chemistry: The intermixing of particles of two different matter is called diffusion

Biology: (in terms of cells)the gaseous exchange between the cells as well as the cell and it's external environment

And if you want just a normal defination: (in terms of light)diffusion is the scattering of light.

Answer 2

Answer:

Facilitated diffusion is the process of spontaneous passive transport of molecules or ions across a biological membrane via specific transmembrane integral proteins.