Leaf Structure 5.0 / 5 based on 1 rating ? BiologyPhotosynthesisIGCSEAQA Created by: NajeehaCreated on: 23-04-15 14:22 A waterproof layer that helps to prevent water loss by evaporation Cuticle 1 of 9 A single layer of cells which are transparent and contain no chloroplasts allowing light to pass straight through Upper Epidermis 2 of 9 Column like cells which contain lots of chloroplasts for photosynthesis to occur Palisade Layer 3 of 9 Irregularly shaped cells with large spaces between them which allow for gas exchange between stomata and photosynthesising cells Spongy Mesophyll 4 of 9 Layer contains tiny holes or pores called stomata which allow gas to diffuse in and out of the leaf Lower epidermis 5 of 9 Specialised cells which surround the stoma Guard cells 6 of 9 holes in the lower epidermis which allow for gaseous exchange stomata 7 of 9 transport tissue for water xylem 8 of 9 transport tissue for glucose phloem 9 of 9
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