Transpiration in Plants
Transpiration in Plants
Transpiration in Plants:
A tissue called xylem acts as the pipeline, and takes water and minerals from the roots up the stem, and to the leaves. Absorption of water and minerals is a continuous process. Water is continuously being lost from the leaves by the process of transpiration (loss of water vapour from the stomata of leaves).
Transpiration is the evaporation of water molecules in the form of water vapours from plant surface, especially from the stomata on leaves. It creates a suction pull which helps water to be transported to great heights in tall trees. Transpiration also cause cooling on the plant surface.Their are basically four type of transpiration:
Which of the following are correct ? (a) During transpiration the surface of the plant is covered by a waxy thin layer through which water loss occur is known as cuticular transpiration. (b) Lenticles transpiration involves in loss water through lenticels. lenticels are the porous tissue present on the surface of stem and leaves. (c) In Bark transpiration some amount of water vapors is also lost through the bark. | |||
| Right Option : D | |||
| View Explanation | |||
Which of the following are correct ? (a) A tissue called xylem acts as the pipeline, and takes water and minerals from the roots up the stem, and to the leaves. (b) Absorption of water and minerals is a continuous process. | |||
| Right Option : C | |||
| View Explanation | |||
Which of the following are correct ? (a) The vascular tissue called xylem carries water from the roots upwards through the stem and branches up to the leaves . (b) Absorption of water and minerals is a continuous process . (c) Transpiration also cause cooling on the plant surface. | |||
| Right Option : D | |||
| View Explanation | |||
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