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प्रश्न
Given ahead is the diagram of an experimental set up to study the process of transpiration in plants. Study the same and then answer the question that follow:
After about half an hour what change, if any, would you expect to find in the cobalt chloride paper placed on the dorsal and ventral sides of the leaf? Give a reason to support your answer.
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उत्तर
The cobalt chloride paper placed on the lower surface of the leaf will show more pink dots as there are more stomata. The upper surface has less stomata than the lower surface.
संबंधित प्रश्न
Name the following:
Any two parts of a leaf which allow transpiration.
The apparatus shown in the following diagram is Garreau’s potometer designed to demonstrate unequal transpiration from the two surfaces of a dorsiventral leaf. Before keeping the leaf in between the cups, anhydrous calcium chloride (CaCl2) contained in two small vials were weighed and placed in both the cups. The ends of the cups were closed with corks through which two mercury manometers were connected. After few hours, CaCl2 vials were taken out and weighed again.
What is the purpose of using a manometer?
Explain the Term
Stomatal transpiration
Name the following:
A plant having sunken stomata.
Mark the most appropriate answer in the following:
In the mechanism of opening and closing of stomata, the important factor is
Choose the Odd One Out
Guard cells help in regulating the ______.
Maximum transpiration occurs through ______.
When guard cells are flaccid, the stoma must be ______.
Give a reason/suitable explanation.
Leaves of some plants wilt during midday and recover in the evening.
