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Passive Transport.
DIFFUSION DIFFUSION
Diffusion
diffusion
Low to High would be "Active transport" if I remember Biology correctly. It requires Energy.
diffusion
Active transport usually involves the movement of particles from high to low concentration.
Osmolosis
Diffusion.
Diffusion is the net movement of particles from an area of high concentration to an area of low concentration.
DIFFUSION DIFFUSION
Diffusion is the movement of molecules from an area of high concentration to an area of low concentration. Osmosis is the movement of water molecules from high to low through a partially-permeable membrane. This is what makes osmosis different to diffusion.