Diffusion is the movement of molecules from a region of high
concentration inside the cell to a region of low concentration
outside traveling down a concentration, this is a passive process
Active Transport
Active transport is the movement of ions from a region of low
concentration inside the cell the region of high concentration
outside the cell, moving against the concentration gradient,
this process requires ATP energy
Osmosis
Osmosis is the movement of water molecules form a region of
high concentration inside the cell to a region of low
concentration outside the cell, travelling down a concentration
gradient, this is a passive process