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प्रश्न
Explain the term:
Cuticular transpiration
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उत्तर
- Cuticular transpiration is the loss of water vapor from the surface of leaves through the cuticle, a waxy layer that covers the epidermis.
- It accounts for a small portion of total transpiration (usually around 5-10%).
- The cuticle is meant to prevent water loss, but some water still escapes through it.
- It occurs more when the cuticle is thin or damaged, or under high humidity and temperature.
- This type of transpiration is non-stomatal, meaning it doesn’t involve stomata.
- It helps regulate water balance but is less efficient compared to stomatal transpiration.
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संबंधित प्रश्न
Given below is an example of a certain structure and its special functional activity:
Chloroplasts and Photosynthesis.
In a similar way, write the functional activity against each of the following:
Thick cuticle and ………………………..
Briefly explain how the rate of transpiration is affected by:
Humidity of the atmosphere
Explain the Term
Lenticel
Study the diagram given alongside and answer the questions that follow:
(i) Explain the physiological process of being study.
(ii) What will be the observations in the two test-tubes after about 2-3 days?
(iii) Give a reason for your answer in (ii) above.
(iv) Why is the surface of water covered with oil?
(v) State the purpose of setting up test tube B.
Give Technical Term
Loss of water from the aerial parts of a plant.
Complete the following sentence with appropriate word:
Transpiration is the loss of water__________________from the leaves of the plant.
Complete the following sentence with appropriate word:
Transpiration normally takes place in the presence of ___________.
Complete the following sentence with appropriate word:
The leaves of the __________ plants have cuticular wax.
State the Location:
Cuticle
