NURSING ANM AND GNM

Detailed explanation-1: -It is the process in which solutes are passed through the concentration gradient in a solution across a semipermeable membrane. The assistance of membrane proteins is not required in this process of diffusion wherein substances move from higher concentration to lower.

Detailed explanation-2: -Diffusion is the movement of molecules from an area of high concentration of the molecules to an area with a lower concentration. For cell transport, diffusion is the movement of small molecules across the cell membrane.

Detailed explanation-3: -Example of Simple Diffusion In the cell, examples of molecules that can use simple diffusion to travel in and out of the cell membrane are water, oxygen, carbon dioxide, ethanol and urea. They pass directly through the cell membrane without energy along the concentration gradient.