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Created page with "==Key Stage 4== ===Meaning=== right|300px|thumb|This [[diagram shows water being transported from the roots to the leaves of..."
==Key Stage 4==
===Meaning===
[[File:WaterTransportPlant.png|right|300px|thumb|This [[diagram]] shows [[water]] being transported from the [[root]]s to the [[Leaf|leaves]] of a [[plant]].]]
[[Transpiration]] is the process by which [[water]] is transported from the [[root]]s of a [[plant]] to the [[leave]]s.
===About Transpiration===
: In [[transpiration]] [[water]] [[evaporation|evaporates]] from the [[leaf|leaves]] and is then replaced by [[water]] that is drawn up through the [[stem]] from the [[root]]s.
: [[Transpiration]] is needed to bring a constant supply of [[water]] and [[mineral]]s to the [[leaf]] for [[photosynthesis]].
: [[Water]] is lost from the [[plant]] through the [[stomata]], so it is important for the [[plant]] to be able to close the [[stomata]] to control [[water]] loss.
: If too much [[water]] is lost through [[transpiration]] the [[plant]] may begin to wilt.
===Factors Affecting Transpiration===
The rate of [[transpiration]] is affected by:
*[[Temperature]] - High [[temperature]]s lead to quicker [[evaporation]] of [[water]] increasing the rate of [[transpiration]].
*[[Humidity]] - High [[humidity]] makes it harder for [[water]] to [[evaporate]] slowing the rate of [[transpiration]].
*[[Wind]] - The constant flow of [[air]] causes [[evaporation]] to happen more quickly increasing the rate of [[transpiration]].
===Meaning===
[[File:WaterTransportPlant.png|right|300px|thumb|This [[diagram]] shows [[water]] being transported from the [[root]]s to the [[Leaf|leaves]] of a [[plant]].]]
[[Transpiration]] is the process by which [[water]] is transported from the [[root]]s of a [[plant]] to the [[leave]]s.
===About Transpiration===
: In [[transpiration]] [[water]] [[evaporation|evaporates]] from the [[leaf|leaves]] and is then replaced by [[water]] that is drawn up through the [[stem]] from the [[root]]s.
: [[Transpiration]] is needed to bring a constant supply of [[water]] and [[mineral]]s to the [[leaf]] for [[photosynthesis]].
: [[Water]] is lost from the [[plant]] through the [[stomata]], so it is important for the [[plant]] to be able to close the [[stomata]] to control [[water]] loss.
: If too much [[water]] is lost through [[transpiration]] the [[plant]] may begin to wilt.
===Factors Affecting Transpiration===
The rate of [[transpiration]] is affected by:
*[[Temperature]] - High [[temperature]]s lead to quicker [[evaporation]] of [[water]] increasing the rate of [[transpiration]].
*[[Humidity]] - High [[humidity]] makes it harder for [[water]] to [[evaporate]] slowing the rate of [[transpiration]].
*[[Wind]] - The constant flow of [[air]] causes [[evaporation]] to happen more quickly increasing the rate of [[transpiration]].