Question

Give the appropriate biological or technical term for the following.

Movement of molecules of substance from their higher concentration to lower concentration when they are in direct contact.

Answer 1

Diffusion refers to the process by which molecules mingle together as a result of their kinetic energy of random motion. It is the net movement of molecules or atoms from a region of higher concentration to a region of lower concentration (movement of molecules down the concentration gradient). Hence, the appropriate biological term for the given statement is diffusion.