Here's why:

* Turgor pressure is the pressure that the contents of a plant cell exert against the cell wall. This pressure is caused by the influx of water into the cell, which makes the cell rigid and upright.

* Plant cells have a central vacuole that fills with water, contributing to the turgor pressure.

* Turgor pressure is essential for maintaining plant shape, rigidity, and overall structural integrity.

Without sufficient turgor pressure, plants would wilt and lose their shape.