biology gcse module 4- leaf structure

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  • Created by: Rachel
  • Created on: 23-12-10 20:57

structure of a leaf

Leaves are designed for making food by photosynthesis.

(http://dj003.k12.sd.us/images/plants/leaf.gif)

Important features;

Adapted for photosynthesis by;

  • Broad surface area- more exposed to light
  • Thin - carbon dioxide and water vapour only have to travel a short distance to the photosynthesing cells.
  • air spaces in spongy mesophyll layer- allows gases like Carbon dioxide & oxygen to move easily between cells.

          - this also…

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