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    explain why plants must undergo transpiration (3 marks)

    what would i need to include to get full marks?
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    Hmm, I always thought of transpiration as a result of plants opening stomata to undergo gaseous exchange...

    Perhaps the answer would be along the lines of needing to maintain a water potential gradient in the plant since the evaporation of water from the leaves creates a lower water potential when compared to the top of the xylem. That would cause water to diffuse into the leaves by osmosis due to the gradient produced; thereby allowing a constant uptake of water be maintained in the plant. In doing so, the water can act as a transport medium within the plant, when transporting sucrose for instance, to allow for the movement of material.

    Just some ideas to think about
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    Because god made them transpire, theres so many whys to questions

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