BRAINCAKEOsmosis in Plant Cells
Plant cells contain various solutes in the cytoplasm.
Some of the solutes are dissolved in the large central vacuole.
Some plant cells are normally in a medium of almost pure water.
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Key terms in this lesson
- vacuole
- A membrane-bound sac, permanent and large in plant cells, used for storage and to maintain turgor pressure.
- osmosis
- The net movement of water molecules from a region of higher water potential to a region of lower water potential through a selectively permeable membrane.
- water potential
- The pressure created by water molecules, a measure of the tendency of water to move out of a solution; pure water has a water potential of zero and solutes make it more negative.
More in Transport Across Cell Membranes
- Carrier Proteins
- Water Potentital Φ
- Osmosis
- Osmosis in Animal Cells
- Active Transport
- Sodium-Potassium Pump
- Increasing the Rate of Movement across a Membrane
- Absorption in the Ileum
All 22 lessons in Transport Across Cell Membranes · All AQA AS-level Biology topics