define osmosis ????
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Osmosis is the movement of water molecules from a weaker solution to a stronger solution through a semipermeable membrane.
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Osmosis is a process of passive diffusion in which some substances, such as CO2 and certain lipid-soluble substances can cross the cell membrane without a requirement for energy.
Osmosis is the movement of water through a semipermeable membrane according to the concentration gradient of water across the membrane, which is inversely proportional to the concentration of solutes. Semipermeable membranes, also termed selectively permeable membranes or partially permeable membranes, allow certain molecules or ions to pass through by diffusion.
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