Diffusion, osmosis and active transport

Diffusion

is the net movement of particles from an area of high concentration to low concentration

factors affection diffusion

distance, surface area to volume ratio, temperature, particle size

Osmosis

is the net movement of water across a partially permaeble membrane from a place of high concentration to low concentration

Factors affecting osmosis

surface area to volume ratio, temperature, difference in water potential

active transport

is the movement of dissolved molecules into or out of cell through the cell membrane from a region of lower concentration to high concentration using Atp energy

factors affecting active transport

temperature, surface area to volume ratio, energy availability