Leaf Tissues And Cell Layers Royalty-Free Stock Image

In palisade, the mesophyll is the site of photosynthesis and is therefore located on the upper surface of the leaf. The spongy mesophyll is the main site of gas exchange and is therefore located on the lower surface of the leaf. Stomata are on the underside of the leaf. The upper surface of the leaf is covered by a thick, waxy cuticle. Vascular bundles are centrally located for optimal access to all leaf cells.