What you’ll learn9 learning objectivesChoose one objective for a focused lesson, or study the complete topic.3.2.1Water as a solvent• Describe the role of water as a solvent in organisms with reference to digestion, excretion and transportSyllabus objective3.2.2Water diffuses through partially• State that water diffuses through partially permeable membranes by osmosisSyllabus objective3.2.3Osmosis through cell membranes• State that water moves into and out of cells by osmosis through the cell membraneSyllabus objective3.2.4Osmosis using materials such• Investigate osmosis using materials such as dialysis tubingSyllabus objective3.2.5Effects on plant tissues of immersing• Investigate and describe the effects on plant tissues of immersing them in solutions of different concentrationsSyllabus objective3.2.6Plants are supported by the pressure• State that plants are supported by the pressure of water inside the cells pressing outwards on the cell wallSyllabus objective3.2.7Osmosis as the net movement of water• Describe osmosis as the net movement of water molecules from a region of higher water potential (dilute solution) to a region of lower water potential (concentrated solution), through a partially permeable membraneSyllabus objective3.2.8Effects on plant cells of immersing• Explain the effects on plant cells of immersing them in solutions of different concentrations by using the terms: turgid, turgor pressure, plasmolysis, flaccidSyllabus objective3.2.9Importance of water potential• Explain the importance of water potential and osmosis in the uptake and loss of water by organismsSyllabus objective