You know that this cell is in a(n) solution because it a cell in a solution. there are much more particles outside the cell than inside. water moves outside the cell, and the cell is wrinkled.

hypertonic; loses water

Explanation:

The extracellular fluid that has higher concentration of solute particles relative to the cytosol of the cell is called hypertonic solution. Thus the less concentrated solution inside the cell is called hypotonic solution.

When the cell is placed in a hypertonic solution, water diffuses from the inside of the cell to the outside i.e. from a region of low solute concentration to a region of high solute concentration, through the cell membrane due to osmotic pressure. Thus causing the cell to shink and get wrinkled.

Therefore, when a cell is placed in a hypertonic solution, it loses water and gets wrinkled.

substitution is the answer in this case