Question

what would happen to cells placed in an isotonic solution? the lose water, swell up, and could burst. nothing. they stay the same. the gain water, shrivel up, and could die. the gain water, swell up, and could burst. the lose water, shrivel up, and could die.

Explanation:

In an isotonic solution, the solute - concentration outside the cell is equal to the solute - concentration inside the cell. So, there is no net movement of water across the cell membrane by osmosis.

Answer:

Nothing. They stay the same.