Biology Unit 3 Quiz 1 2.0 / 5 based on 1 rating ? BiologyGCSEAQA Created by: MegCreated on: 31-03-13 11:55 What is the definition of Diffusion? The movement of substances from a region of high concentration to a low region of concentration 1 of 6 How can you increase the rate of diffusion? Facillated diffusion 2 of 6 Define Active Transport The movement of substances from a low to a high concentration region. 3 of 6 What is the difference between active transport and diffusion? Diffusion is high to low, active transport is low to high 4 of 6 Explain the term Osmosis The diffusion of water from a dilute to a more concentrated solution through a partially permable membrane that allows the passage of water molecules 5 of 6 Where does osmoregulation occur in humans? The Kidneys 6 of 6
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