6.2 Leaf structure

How a leaf is engineered for photosynthesis. The whole-leaf adaptations (large surface area, thinness), the labelled cross-section (cuticle, upper and lower epidermis, palisade mesophyll, spongy mesophyll, air spaces, guard cells and stomata), and the vascular bundles (xylem and phloem) that supply water and remove sucrose.