Which of the following statements is true for a cell placed in beaker containing an isotonic solution?

a)water molecules flow from the cell into the beaker.
b)water molecules flow from the beaker into the cell.
c)water molecules flow in both directions at the same rate.
d)there is no movement of water molecules.

The answer is C)Water molecules flow in both directions at the same rate. In a hypotonic solution, the water concentration of the cell's cytoplasm is lower than that of the hypotonic solution. In a hypertonic solution, the water concentration of the cell's cytoplasm is higher than that of the hypotonic solution. In, an isotonic solution, there is a balance in the water concentration between the cell's cytoplasm and the solution. Thus, water molecules flow in both directions at the same rate.