Question

a red blood cell placed in a beaker of solution immediately begins to swell and ultimately bursts. this occurs because the cytoplasm of the cell was to solution in the beaker, which was
isotonic; hypotonic
hypotonic; hypertonic
hypertonic; isotonic
hypotonic; isotonic
hypertonic; hypotonic

Explanation:

When a cell swells and bursts, water moves into it via osmosis. This happens because the cell's cytoplasm has a higher solute concentration (hypertonic) than the surrounding solution (hypotonic), so water flows from the hypotonic solution into the hypertonic cytoplasm.

Answer:

hypertonic; hypotonic