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प्रश्न
Differentiate Between Cobalt chloride paper and Goat’s bladder.
उत्तर
| Stomata | Hydathodes |
| Stomata pass out water in the form of vapours. | Hydathodes send out water in the form of droplets. |
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संबंधित प्रश्न
Name the following:
Any two parts of a leaf which allow transpiration.
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.
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?
The apparatus shown here is Girreau’s poto-meter 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 a few hours, CaCl2 vials were taken out and weighed again.
(i) What is the purpose of keeping CaCl2 vials inside the cup?
(ii) After a few hours, the CaCl2 vials were taken out and weighed again. Will you expect any difference in weight? If so, give reasons.
(iii) What was the purpose of using a mano-meter?
(iv) What do you mean by transpiration?
Name the following:
A potometer is an instrument for measuring the rate of the most transpiration in a herbaceous plant like Balsam occurs through which part.
State the Location:
Stomata
State the Location:
Guard cells
Mention the differences between stomatal and lenticular transpiration.
Guard cells help in regulating the ______.
Give a reason/suitable explanation.
More transpiration occurs from the under surface of a dicot leaf.
