Biology – 3.2 Osmosis | e-Consult

Solution A has a water potential of 0 kPa, which is equal to pure water. Water will move into the potato by osmosis because the water potential inside the potato (typically higher than 0 kPa) is greater than the water potential of the solution. Solution B and Solution C have negative water potentials, indicating that they are more concentrated than the potato’s cytoplasm. Therefore, water will move out of the potato by osmosis into the solution, causing the potato to lose water and become drier. The greater the negative water potential of the solution (i.e., the more concentrated it is), the more water will move out of the potato.