What is transpiration?
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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.
Explanation:
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Answer:
Transpiration is the process in which plants release the water inside it in the form of moisture or water vapor. Roots consume some amount of water from the soil and the rest evaporates in the atmosphere. Parts of plants such as stems, small pores on leaves, and flowers evaporate the water to the atmosphere. In other words, it is the process in which water evaporates in the atmosphere from plant leaves and other parts. Let us study more about it.Types of Transpiration
Depending on the organ that performs transpiration, the different types are:
Stomatal transpiration: It is the evaporation of water through stomata. Stomata are specialized pores in the leaves. They account for around 80 to 90% of the total water loss from the plants.
Cuticular transpiration: Cuticle is an impermeable covering present on the leaves and stem. It causes around 20% of transpiration in plants. Cuticular transpiration is lesser in xerophytes because they have thicker cuticles.
Lenticular Transpiration: It is the evaporation of water through lenticels. Lenticels are the tiny openings present on the woody bark.The orientation of microfibrils is radial rather than longitudinal. This helps stomata to open easily. In a dorsiventral dicotyledonous leaf, the number of stomata on the lower surface is higher when compared to the upper surface. This adaptation helps in reducing the evaporation of water. In isobilateral leaf in a monocotyledonous plant, the number of stomata is equal on both the surfaces.
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