Advertisements
Advertisements
प्रश्न
What type of transpiration is possible in the xerophyte Opuntia?
विकल्प
Stomatal
Lenticular
Cuticular
All the above
Advertisements
उत्तर
All the above
Explanation:
In xerophytes like Opuntia (a cactus adapted to arid environments), all three types of transpiration can occur:
- Stomatal transpiration: through stomata (although reduced, they are present in the stem since leaves are modified into spines).
- Cuticular transpiration: through the waxy cuticle covering the stem.
- Lenticular transpiration: through lenticels in the stem.
संबंधित प्रश्न
Briefly explain, how transpiration helps in upward conduction of water in plants?
Define the term Transpiration stream
Give suitable explanation for the following:
On a bright sunny day, the leaves of certain plants roll up.
The diagram given alongside is an apparatus used to study a particular phenomenon in plants.
(i) Name the apparatus.
(ii) What is it used for?
(iii) What is the role played by the air bubble in this experiment?
(iv) Of what use is the reservoir?
Comment on the following statement:
A well-watered potted plant shows wilting of leaves on a hot sunny day.
Given alongside is the diagram of an experimental set-up to demonstrate a certain phenomenon in plants.
Would it make a difference if the experimental set-up is kept in bright sunshine?
An apparatus as shown below was set up to investigate a physiological process in plants. The setup was kept in sunlight for two hours. Droplets of water were then seen inside the bell jar. Answer the questions that follow:
Mention two ways in which this process is beneficial to plants.
What are stomata? What governs the opening and closing of stomata?
During transpiration, there is a loss of ______
Plants lose water by the process of transpiration.
Guard cells are responsible for the opening and closing of stomata.
Boojho’s uncle was hospitalised and put on dialysis after a severe infection in both of his kidneys.
When does it become necessary to take such a treatment?
Stamen has two parts called ______ and ______.
Entry of water into root hair is the demonstration of which of the following process?
The lower surface of leaf will have more number of stomata in a ______.
Plants show temporary and permanent wilting. Differentiate between the two. Do any of them indicate the water status of the soil?
(a) State whether the following statement are True or False.
(b) Rewrite the false statement in the correct form by changing either the first or the last word only.
Transpiration helps to cool the body of the plant.
