Answer:
The cell will swell up.
Explanation:
Cell contains 25% salt solution.
Concentration of solution in which cell is floating = 5%
25% salt solution > 5% salt solution
Cell is more concentrated that the solution.Due to this movement of salt that is solute particles will take place from higher concentration to lower concentrations. And water will move from lower concentration to higher concentration that inside the cell, resulting in swelling up of the cell.