Question

red blood cells are hemolyzed when the cells are placed in
a hypertonic solution
an isotonic solution
5% salt solution
a hypotonic solution
i dont know yet

Explanation:

Hemolysis of red blood cells occurs when water enters the cells due to osmosis. In a hypotonic solution, the solute concentration outside the cell is lower than inside, so water moves into the cell, causing it to swell and potentially burst (hemolyze). A hypertonic solution causes crenation (shrinking), an isotonic solution has no net water movement, and a 5% salt solution is hypertonic relative to red blood cells.

Answer:

D. a hypotonic solution