Posey: At school, Miss Violet told us about the special tubes that transport water up ... KS1 and KS2 in Northern Ireland. A film looking at the various parts of a plant and their functions.

How does water move through plants to get to the top of tall trees? Here we describe the pathways and mechanisms driving water uptake and transport through plants, and causes of flow disruption.

In pure water, the cell contents (the cytoplasm and vacuole) push against the cell wall and the cell becomes turgid . Fully turgid cells support the stems of non-woody plants. In a very ...