transport

• diffusion is the net movement of particles from a high concentration to a low
• final mass-initial mass/ initial mass x 100 is in osmosis
• oxygen and co2 and urea diffuses
• concentration affects rate of diffusion: greater gradient means higher diffusion rate
• temp is a factor of diffusion: more energy means more kinetic energy, this increases Rate if DIFUSSIOM
• the greater the surface area of membrane mid, greater the rate of diffusion is
• osmosis is diffusion of water molecules from a dilute solution to a concentration solution through a SEMI PERMEABLE membrane
• in osmosis, plant cell will become turgid and will not burst because of the cell wall
• turgid: swollen
• flaccid: plant cell shrinks
• active transport is the movement from a low con to a high, against concentration gradient and requires energy from respiration
• active transport carries mg mineral ions in plants, through root hair cell
• root transports ions go xylem from soil through active transport