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Janine Regan February 2003 Preston College 46651 An Investigation to find the water potential of a plant cell Aim and Introduction The initial aim of the experiment was to determine the water potential of a plant cell. (Measured in kPa, ?). With the knowledge ofosmosis it was possible to discover the water potential of the cell. Osmosis states that water molecules move from a region of a higher water potential/concentration to a region of a lower water potential/concentration through a semi permeable membrane, until equilibrium. As emphasised, "until equilibrium", was the key part to the investigation, as it became the aim of the experiment. It then made sense that if a plant cell, let's say a potato sample was placed in a known created solution, such as in this case a sucrose solution and in due course no change in mass or volume in either the potato or solution occurs, we would then...

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