What is the significance of Transpiration?
1 Answer
It cools down the plant and maintains a steep concentration gradient.
Explanation:
Water moves into the plant through osmosis, and osmosis can only happen when there is a significant concentration difference between the two concentrations of water in two regions, which in this case are the roots of the plant and the soil.
In the soil, there is much more water there compared to the roots, so water moves down the concentration gradient (osmosis) and through the partially permeable membrane of the root hair cells.
Then, it gets transported to other parts of the plants, keeping the plant hydrated. Finally, when it gets hot, water exists out of the plant as water vapour, and that process is called transpiration.
When it does so, the concentration of water in the plant is decreased once again, and more water will move in by osmosis.
As an additional fact, transpiration will also remove the most energetic molecules off the plant, which results in the plant having only low-energy water molecules, and therefore cooling down the overall temperature of the plant, and keeping its enzymes from getting denatured.
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