explain why plants must undergo transpiration (3 marks)
what would i need to include to get full marks?
why do plants transpire? Watch
- Thread Starter
- 12-05-2016 21:14
- 12-05-2016 21:48
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
- 12-05-2016 21:51
Because god made them transpire, theres so many whys to questions
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