The advantage of cell wall in relationship to osmotic pressure is that the cell wall protects the cell from osmotic shock or osmotic lysis.
Step-by-step explanation:
Osmosis is a process which takes place across the semipermeable membrane or the plasma membrane in the cell , the solvent on both the sides of the plasma membrane moves across the membrane to maintain the concentration of the solute.
This osmotic pressure can sometimes vary a lot, causing the cell to burst. A cell wall maintains this and keeps the cell stable.