Leaf Adaptations for Photosynthesis

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  • Thin so short diffusion distance
  • Transparent cuticle and epidermis let light through to the photosynthetic mesophyll cells below
  • Long, narrow upper mesophyll cells packed with chloroplasts
  • Leaf adaptations for photosynthesis
    • Thin so short diffusion distance
    • Arrangement of leaves to minimise overlapping / shadowing
    • Large SA
    • Numerous stomata for gaseous exchange
    • Stomata open and close due to changes in light intensity
    • Many air spaces in lower mesophyll layer (CO2 & O2 diffuse)
    • Network of Xylem that brings water to the leaf cells and phloem that carries away sugars produced in photosynthesis
    • Long, narrow upper mesophyll cells packed with chloroplasts
    • Transparent cuticle and epidermis let light through to the photosynthetic mesophyll cells below
  • Network of Xylem that brings water to the leaf cells and phloem that carries away sugars produced in photosynthesis

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