If a cell is placed in a/an ______, there will be a net flow of water out of the cell and the cell will lose volume

• Hypertonic Solution:
If a cell is placed in a hypertonic solution, there will be a net flow of water out of the cell and the cell will lose volume because water moves from a higher concentration inside the cell to a lower concentration outside.
Plasmolysis occurs when water moves out of the cell and the cell membrane of a plant cell shrinks away from its cell wall.
This occurs when the cell (or tissue) is placed in a solution that is hypertonic (has more solutes) to the protoplasm.Water moves out; it is first lost from the cytoplasm and then from the vacuole.
The water when drawn out of the cell through diffusion into the extracellular (outside the cell) fluid causes the protoplast to shrink away from the walls. The cell is said to be plasmolyzed.

• Hypotonic solution:
The process of plasmolysis is usually reversible.
When the cells are placed in a hypotonic solution (higher water potential or dilute solution as compared to the cytoplasm), water diffuses into the cell causing the cytoplasm to build up a pressure against the wall, which is called turgor pressure.
If the medium surrounding the cell is having a higher concentration than the cell, the cell is said to be in a hypotonic solution.

• isotonic solution:
When the cell (or tissue) is placed in an isotonic solution, there is no net flow of water towards the inside or outside.
If the external solution balances the osmotic pressure of the cytoplasm it is said to be isotonic.
When water flows into the cell and out of the cell and is in equilibrium, the cells are said to be flaccid. 
Isotonic solution is a solution with equal solute concentrations to one another and thus, there is no net movement of water.​

• Isosmotic Solution:
In an isosmotic solution, Sodium acetate anhydrous is used as an electrolyte replenisher for parenteral replacement of acute losses of extracellular fluid without disturbing normal electrolyte balance