Leaf structure

1 Waxy cuticle - prevents excess water loss by evapouration
2 Epidermis - prevents water loss and harmful substances entering the cell

3 Pallisade layer - made of palisade cells which have many chloroplast to allow lots of photosynthesis

4 Spongy layer - cells have some chloroplast to allow some photosynthesis with lots of air spaces

5 Air spaces - to allow gases (carbon dioxide and oxygen) to diffuse into/out of the leaf 6 Stomata - Allows carbon dioxide into the leaf and oxygen out. Also controls the amount of water lost from the plant.

6 Stomata - Allows carbon dioxide into the leaf and oxygen out. Also controls the amount of water lost from the plant.