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why do plants transpire?

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    • Thread Starter

    explain why plants must undergo transpiration (3 marks)

    what would i need to include to get full marks?

    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

    Because god made them transpire, theres so many whys to questions

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