Compare solute concentration and water potential on both sides, state the net direction of water movement and connect it to mass, volume or cell condition.
In an investigation, the water potential of a potato was compared with that of a yam.
State what is meant by the term water potential.
The graph shows the results obtained in this investigation.
Different concentrations of sucrose solutions have different water potentials.
The graph shows the water potentials for sucrose solutions of different concentrations.
Determine the water potential for the potato cylinders.
Use your completed graph and this graph to determine the water potential.
Value read from completed graph
Water potential of the potato
kPa
The water potential for the yam was -1890 kPa .
Suggest why there is a difference between the water potential of the yam and the water potential of the potato.