Stomata |
Water transpires from the stomata on the leaves |
Leaves are adapted for photosynthesis by having a large surface area and they contain stomata (openings) to allow carbon dioxide into the leaf and water out. The main purpose of the stomata is to let carbon dioxide into the airspace within the leaf, this is then used for photosynthesis. The stomata also lets water out of the plant. The water exits the plant by diffusion through the process called transpiration, when this happens, it increases the gradient between the water and the xylem. Guard cells control the stomata, either its open or closed.
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