In transpiration, water moves through a plant from the root hairs to the leaves, where it evaporates from the ____ in the lower ____. Transpiration is essential because it provides fresh supplies of water and ____ to the plant. However, if ____ occurs when the soil is quite dry, the plant can rapidly ____ as too much water is lost. Wilting protects the plant from further water loss by reducing the ____ area of the leaves that are exposed to the environment. ____ cells also close to reduce further evaporation – however, this in turn stops ____ and can lead to the plant ____. Hot, ____ and windy conditions lead to more ____ transpiration, as all these contribute to a faster rate of ____ of water vapour from the leaf.

Transpiration

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