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). The rate of transpiration increases in a hot sunny day or in moving air.
Transpiration: loss of water in the form of vapour from the aerial parts of the plant. It takes place mainly through stomata. It has the following advantages:
Which of the following are correct ? (a) Transpiration help in the absorption and upward movement of water and minerals creating a ‘transpiration pull.’ (b) Transpiration helps in the regulation of temperature. (c) Transpiration maintains a constant supply of ions to the leaves . | |||
| Right Option : D | |||
| View Explanation | |||
Which of the following are correct ? (a) Transpiration is the loss of water in the form of vapor from the aerial parts of the plant. It takes place mainly through stem . (b) Transpiration helps in the absorption and upward movement of water and minerals creating a ‘transpiration pull.’ . | |||
| Right Option : B | |||
| 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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