Layers Of A Leaf Diagram. The stomata close in the night to retain gases and moisture in the leaf cells and opens during the day for gaseous exchange to continue. A waxy layer that prevent water loss by evaporation.
These allow gases to diffuse in and out of the leaf. Parts of a leaf generally leaf base petiole and lamina together form the main parts of a leaf. Take a good look at the diagram and the various parts of the leaf structure.
Contains lots of tiny holes.
1 petiole 2 leaf base and 3 leaf blade or lamina each performing specific functions. 1 petiole 2 leaf base and 3 leaf blade or lamina each performing specific functions. This layer contains lots of tiny holes or pores called stomata at regular intervals. A waxy layer that prevent water loss by evaporation.