Osmosis: In osmosis, water always moves from an area of higher water concentration to one of lower concentration. ... Thus, water will diffuse down its concentration gradient, crossing the membrane to the side where it is less concentrated.

What moves against the concentration gradient?

During active transport, substances move against the concentration gradient, from an area of low concentration to an area of high concentration. This process is “active” because it requires the use of energy (usually in the form of ATP). It is the opposite of passive transport.

Does osmosis move from high to low?

Both diffusion and osmosis are passive transport processes, which means they do not require any input of extra energy to occur. In both diffusion and osmosis, particles move from an area of higher concentration to one of lower concentration.