Advertisements
Advertisements
Question
The lower surface of leaf will have more number of stomata in a ______.
Options
Dorsiventral leaf
Isobilateral leaf
Both dorsiventral leafand isobilateral leaf
None of the above
Advertisements
Solution
The lower surface of leaf will have more number of stomata in a dorsiventral leaf.
Explanation:
Dorsiventral leaves face a high rate of transpiration and the transpiration occurs through stomata, so to avoid the percentage of transpiration rate lower surface of the dorsiventral leaves contains more number of stomata and a lesser number of stomata in the upper surface but In the isobilateral leaf, the number of stomata is the same on both surfaces.
APPEARS IN
RELATED QUESTIONS
Discuss the factors responsible for ascent of xylem sap in plants
The set up shown alongside was kept in sunlight for an hour. It was observed that drops of water appeared on the inside of the polyethylene bag.
- Name the process which is being demonstrated.
- Why was the pot and its soil left uncovered by the polythene bag?
- Why was the pot left in the sunlight?
- Suppose the pot in this experiment was placed inside a dark room instead of placing it in sunlight for some time. What difference will be noticed?
Define the termTranspiration
Name the process by which water loss takes place through the leaves.
Given alongside is the diagram of an experimental set-up to demonstrate a certain phenomenon in plants.
What is the purpose of putting oil in the test tube?
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.
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:
List three adaptations in plants to reduce the above mentioned process.
What are stomata? What governs the opening and closing of stomata?
Design an experiment to demonstrate the transpiration process.
Describe an experiment to prove that transpiration occurs more from the undersurface of dorsiventral leaves.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Moist cobalt chloride paper is blue in colour.
Give the importance of transpiration?
Complete the following by choosing the proper option.
Stomata : Transpiration :: Hydathode : ____________.
Transpiration takes place through ______.
Entry of water into root hair is the demonstration of which of the following process?
How can plants be grown under limited water supply without compromising on metabolic activities?
Why is transpiration less in the still wind?
Enlist different advantages of transpiration.
