Combined ScienceCode 5129

Leaf structure

What this topic asks you to be able to do

  • State that most leaves are thin with a large surface area, and explain in what way each of these features is an adaptation for photosynthesis
  • Identify and label, on diagrams or photomicrographs of a dicotyledonous leaf, its cuticle and its cell and tissue structures, and explain how each structure is adapted for photosynthesis and gas exchange, limited to: (a) guard cells and stomata (b) palisade and spongy mesophyll cells (c) vascular bundles (xylem and phloem) (d) air spaces (e) how the chloroplasts are distributed