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Cells in plants with similar functions may be organised into tissues or organs.
Epidermal tissues cover the leaves to protect them, and can produce a waxy substance to prevent water loss.
Palisade mesophyll tissues contain most of the cholorplast used for photosynthesis.
Spongy mesophyll tissues have air spaces in them. They are good at diffusing gases, and the cells have large surface area to make this easier.
Xylem tissues transport water and dissoleved minerals from the root up to the top of the plant.
Phloem tissues dissolved sugars or food from the leaves around the plant.
Meristem tissues are where the roots and tips are growing fastest on the plant. Like stem cells in animals, meristem cells can specialise or differentiate into all other cell types needed.
Memorising plant tissues
In the notes above, we have explained plant tissues - but what if you could magically memorise all this for your exams easily?
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