b) What is transpiration ?
Answers
Answer:
Transpiration is the process of water movement through a plant and its evaporation from aerial parts, such as leaves, stems and flowers. Water is necessary for plants but only a small amount of water taken up by the roots is used for growth and metabolism. The remaining 97–99.5% is lost by transpiration and guttation
Transpiration is the process by which the excess water is released by the plants to the atmosphere
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it happens withe help of guard cells
when the guard cells shrink the stomatal pores open and the excess water is released to the environment
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it has a lot of importance
1)it helps the plants to keep cool during hot conditions
2) it helps plants to lose excess water
3)as the excess water evaporates it indirectly helps us to get rainfall
4)through transpiration all the parts of the plants get water
5)it helps the plants cells to be turgid