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प्रश्न
Differentiate Between Cobalt chloride paper and Goat’s bladder.
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उत्तर
| Stomata | Hydathodes |
| Stomata pass out water in the form of vapours. | Hydathodes send out water in the form of droplets. |
APPEARS IN
संबंधित प्रश्न
Name the following:
openings on the stem through which transpiration occurs.
Given ahead is a diagram of an experimental setup to study the process of transpiration in plants. Study the same and then answer the question that follows:
- Name the colour of dry cobalt chloride paper.
- Is the experimental leaf a monocot or a dicot? Give a reason to support your answer.
- Why are glass slides placed over the dry cobalt chloride papers?
- 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 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?
Complete the following sentence with appropriate word:
Openings found on the undersurface of the dorsiventral leaf are ___________.
State the Location:
Stomata
Suppose you have a rose plant growing in a pot, how will you demonstrate transpiration in it?
Mention the differences between stomatal and lenticular transpiration.
Assertion (A): The loss of excess water from the aerial parts of the plant in the form of water vapor is known as transpiration.
Reason (R): Stomata of the leaf perform transpiration.
Maximum transpiration occurs through ______.
