Biology 0.0 / 5 ? BiologyExchange of materialsGCSEAQA Created by: neru123Created on: 28-10-14 21:42 What is Osmosis? The movement of water particles from a high concentration to a low concentration along a concentration gradient 1 of 5 What is active transport? The movement of substances against a concentration gradient 2 of 5 What is diffusion? The movement of particles from an area of high concentration to an area of low concentration 3 of 5 Name one adaptation of a villi Each villus is covered in microscopic microvilli which increases the surface area 4 of 5 Name another adaptation It has a good bloody supply. 5 of 5
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