Biology B3 1.1 Osmosis. 0.0 / 5 ? BiologyExchange of materialsGCSEAQA Created by: Atlanta and JacobCreated on: 17-03-16 17:44 What is osmosis? The diffusion of water (the movement of water) across a partially permeable membrane. 1 of 7 How does water diffuse (osmosis)? Water diffuses from a dilute solution to a more concentrated solution through a partially permeable membrane. 2 of 7 How does water move into or out of cells by osmosis? Through the cell membrane. 3 of 7 What does osmosis refer to? The movement of water molecules only. 4 of 7 How does the water move in osmosis? Just like diffusion, the movement of water molecules is random and requires no energy from the cell. 5 of 7 In what direction does the water move during osmosis? The water moves from a region of high water concentration (a dilute solution) to a region of lower water concentration (a more concentrated solution). 6 of 7 What is the structure of the cell membrane (osmosis)? Partially permeable. 7 of 7
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