Question

If the contents of a cell have a solute concentration of 0.04 percent, which of these solutions would cause it to swell?

Answer 1

If the water enters the cell that means it is making the solution in the cell more dilute, so it means that outside the cell is a lower concentration than inside the cell.  Since the solute cannot move, the water has to move to make the concentrations equal. Anything less than 0.004%.  The greater the difference, the greater the volume of water that would enter cell in a given period of time.  Remember, water moves freely so it is always going both directions across the membrane, but at different rates.  Like how a city has more cars entering it in the morning than leaving it (generally speaking).

Answer 2

if the solution otside of the cell has more concentration then the cell will swell this is called hypotonic solution