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GCSE Biology > Leaf Structure

1. Waxy Cuticle - Forms a waterproof layer to stop any loss of water.

2. Upper Epidermis - Consisting of epidermal cells. These have no chloroplasts.

3. Palisade cells - These contain lots of chloroplasts, which contain lot of chlorophyll. This is where photosynthesis is carried out.

4. Spongy Mesophyll Layer

5. Air Spaces - allow for diffusion of water vapour etc...

6. Guard Cells - These form stomata (pores) which allow for the diffusion of gases in and out of the plant.

7. Leaf Vein - containing xylem and phloem tubes.

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