Tuesday, 2 October 2012

classifying the plants

Special Structure

Turgor Pressure

Turgor Pressure:
The pressure exerted by water inside the cell against the cell wall.

For Non-woody plants (herbaceous plants),
the stems are supported by the turgidity/ turgor pressure of plant cells.

Plants need water to maintain turgor pressure, which allows the non woody parts of plants to expand and remain rigid. When the plants lack of water, the leaves are droopy.  

When the water flowing into the plants tissues, a turgor pressure exerted on the plant cell wall and this makes plant cells to become turgid. Then, the plants are able to stand upright and do not wilt. 

Other resources:

Turgor Pressure

1. Animation 
2. Wikipedia 
3. Lab