The cell wall protects and supports the plant cell. but IS NOT the same thing as the cell membrane .
The Cell Wall Protects the Inner Cell and It Helps so the Cell can Reproduce and survive While on land and Not die off.
I assume you really mean, "What structure does a plant cell have that an animal cell does not?"Plant cells have a cell wall. Animal cells do not.
If you mean orgenelles, then the cell wall, and the chloroplast(s)