What are some similarities and differences between osmosis and diffusion?

2 Answers
May 2, 2018

Diffusion and osmosis are more alike,it's only that the former is selective.


-They both account for movement of molecules from a region of high concentration to a region of low concentration.

-As for osmosis;the movement of molecules are via a selectively permeable membrane. NB:only water molecules.
-Diffusion is the movement of all kinds of molecules.

May 2, 2018

They both go down a concentration gradient, but osmosis is only for solvent molecules passing through a partially permeable membrane.


Diffusion and osmosis are processes in which molecules will move from a region of a higher concentration to a region of lower concentration to establish a chemical equilibrium.

Osmosis is different than diffusion because it requires solvent molecules, like water, and only applies when passing through a selectively permeable membrane. Diffusion on the other hand, does not require a membrane to happen.