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OSMOSIS IN POTATO TISSUE GCSE Biology - Experiment report Osmosis is a specialised form of diffusion, a process in which molecules move across a semi-permeable membrane. Osmosis applies specifically to water molecules that behave in this way, moving from a region of high water concentration to a region of low water concentration. Also known as moving down a concentration gradient, this movement can be best described below: N.B - The sugar particles are too large to pass through the semi-permeable membrane. D The process happens only in one direction, as shown by the arrows in the diagram above. It is important to remember that osmosis will take place whenever two solutions of water of differing concentrations, are separated by a selectively permeable membrane. Osmosis takes place throughout both plant and animal cells, and has differing effects in both mediums. Because all plant cells incorporate a rigid cell wall, plant cells are...

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