2.14 understand the importance in plants of turgid cells as a means of support

A turgid cell is one that is swollen full of water. This is important because they are stronger, therefore they support the plants - meaning the plant will grow upwards. Plant cells have a cell wall to stop them bursting when turgid. When plant cells start to lose water they become flaccid. Flaccid plants lose their strength and start to wilt. Eventually, flaccid cells become plasmolysed as the cell membrane begins to peel away from the cell wall, killing the cell.

This diagram might help for understanding, but it does not need to be learnt.