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प्रश्न
Explain the term:
Transpiration
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उत्तर
- Transpiration is the process by which plants lose water vapor from their aerial parts, mainly through the stomata in the leaves.
- It mostly occurs during the day when stomata are open for gas exchange.
- This water loss occurs as water vapor into the atmosphere.
- Transpiration helps in the ascent of sap by creating a transpiration pull.
- It also helps in cooling the plant and maintaining water balance.
- Transpiration occurs through three main sites - cuticle, stomata, and lenticels.
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संबंधित प्रश्न
State whether the following statement is true or false. Rewrite the false statement correctly.
Transpiration is the loss of water from the roots of the plant.
Multiple choice question. Tick (✓) the correct choice:
The loss of water through the stomata of leaves is called
(a) transpiration
(b) wilting
(c) evaporation
(d) osmosis
Transpiration is the loss of water as water ______ from the ______ parts of the plant.
Give suitable explanation for the following:
Perspiration and transpiration help to cool the body temperature of the organism.
______ involves evaporative loss of water from aerial parts.
ABA (Abscisic acid) is called a stress hormone. How does this hormone overcome stress conditions?
ABA (Abscisic acid) is called a stress hormone. From where does this hormone get released in leaves?
Transpiration occurs:
Which of the following is an external factor affecting the rate of transpiration?
(a) State whether the following statement are True or False.
(b) Rewrite the false statement in the correct form by changing either the first or the last word only.
Transpiration helps to cool the body of the plant.
