Osmosis

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4 Terms

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Q1: What is osmosis?

A1: The movement of water molecules through a partially permeable membrane from a region of higher water concentration to a region of lower water concentration.

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Q2: Why is osmosis important in plants?

A2: It maintains turgor pressure, keeping cells firm and plants upright.

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Q3: What happens when a plant cell is placed in pure water?

A3: Water enters by osmosis, the vacuole swells, and the cell becomes turgid.

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Q4: What happens when a plant cell is placed in a concentrated solution?

A4: Water leaves the cell, and it becomes plasmolysed (the membrane pulls away from the cell wall).