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प्रश्न
उत्तर
An experiment to prove that transpiration occurs more from the lower surface of a leaf :
- Take a potted plant.
- Place two Cobalt chloride papers on either side of a leaf of the potted plant with the help of two glass slides .
- Keep the plant in sunlight.
- After sometime it is observed that the cobalt chloride paper on the lower side of the leaf changed its colour to pinkish than the upper side . This shows that rate of transpiration is more on the lower surface of a leaf .
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संबंधित प्रश्न
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
How does transpiration help in the uptake of water from the soil?
Transpiration is the loss of water as water ______ from the ______ parts of the plant.
Given alongside is the diagram of an experimental set-up to demonstrate a certain phenomenon in plants.
What is the purpose of the spring balance in the set-up?
An apparatus as shown below was set up to investigate a physiological process in plants. The setup was kept in sunlight for two hours. Droplets of water were then seen inside the bell jar. Answer the questions that follow:
Why was the pot covered with a plastic sheet?
An apparatus as shown below was set up to investigate a physiological process in plants. The setup was kept in sunlight for two hours. Droplets of water were then seen inside the bell jar. Answer the questions that follow:
Mention two ways in which this process is beneficial to plants.
Answer the following question.
Define and or explain the term:
Transpiration
Transpiration is a necessary evil in plants. Explain.
ABA (Abscisic acid) is called a stress hormone. From where does this hormone get released in leaves?
The radio labelled carbon in carbon dioxide supplied to potato plants in an experiment was seen in the tuber eventually. Trace the movement of the labelled carbon dioxide.
