cell transport 0.0 / 5 ? BiologyExchange of materialsGCSEAQA Created by: Daniella_72Created on: 15-11-22 16:05 what is diffusion? the movement of particles from an area of high concentration to an area of low concentration 1 of 6 what are the three factors affecting the rate of diffusion? -concentration gradient (good blood supply) -surface area (large surface area to volume ratio) -temperature (high temp=more kinetic energy) 2 of 6 what is osmosis? diffusion (high to low) of particles through a partially permeable membrane (from dilute solution to concentrated solution) 3 of 6 what happens to animal and plant cells during osmosis? plant cells: become turgid (water in) or flaccid (water out) animal: swells and bursts (in) or shrinks (out) 4 of 6 what is active transport? the movement of substances against the concentration gradient, this requires energy from respiration 5 of 6 what are two examples of active transport? root hair cell (from soil to plant) lumen of small intestine (moves sugars into the blood) 6 of 6
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