Question

cells will swell when placed in a solution that is

Explanation:

To determine the type of solution that causes cells to swell, we recall the concept of osmosis. Osmosis is the movement of water across a semi - permeable membrane from an area of lower solute concentration to an area of higher solute concentration. A hypotonic solution has a lower solute concentration (and thus a higher water concentration) compared to the inside of the cell. When a cell is placed in a hypotonic solution, water moves into the cell (from the hypotonic solution, where there is more water, into the cell where there is relatively less water) by osmosis. This influx of water causes the cell to swell.

Answer:

hypotonic