Osmosis is the movement of _____ molecules from a region of higher concentration to a region of lower concentration through a semipermeable membrane.
A
water
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B
oxygen
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C
nitrogen
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D
sodium
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Solution
The correct option is A water Osmosis is the movement of water molecules from a region of higher concentration to a region of lower water concentration through a semipermeable membrane. For example - Root hairs absorb water through the process of osmosis. The concentration of the water molecules is lower in the root hair than in the soil. So the water moves into the root hairs through osmosis.