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प्रश्न
Mention the differences between stomatal and lenticular transpiration.
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उत्तर
| Sr. No. | Stomatal Transpiration | Lenticular Transpiration |
| 1. | Loss of water in the form of water vapour through minute pore called stomata. | Loss of water in the form of water vapour through lenticels. |
| 2. | Stomata are confined to epidermis of green shoot and leaves. | Lenticels are confined in woody stem and fruits. |
| 3. | It amounts for 90% to 95% of the water transpired from leaves. | It amounts for 1% to 5% of the total water loss by the plants. |
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संबंधित 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 questions that follow:
Is the experimental leaf a monocot or a dicot? 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 do you mean by transpiration?
State the functions of guard cells.
Given below is an experimental set up to study a particular process:
(i) Name the process being studied.
(ii) Explain the process named in (i) above.
(iii) Why is the pot covered with a plastic sheet?
(iv) Mention one way in which this process is beneficial to the plant.
(v) Suggest a suitable control for this experiment.
Complete the following sentence with appropriate word:
In Nerium, the stomata are present in _________.
Complete the following sentence with appropriate word:
Openings found on the undersurface of the dorsiventral leaf are ___________.
Write the functional activity of the following structure:
Stomata
Mark the most appropriate answer in the following:
In the mechanism of opening and closing of stomata, the important factor is
Given below is the figure of a stoma. Study the same and answer the following questions:
- Label the guidelines A and B.
- Write the exact location of the above-mentioned structures.
- Mention one important role of structure A.
- Write three important roles for structure B.
- Redraw the same figure when structures A are in flaccid condition. When does the flaccid condition occur?
