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
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:
- Name the process being studied.
- Explain the process named above in Q.3(a)(i).
- Why was the pot covered with a plastic sheet?
- Suggest a suitable control for this experiment.
- Mention two ways in which this process is beneficial to plants.
- List three adaptations in plants to reduce the above mentioned process.
Under what conditions do plant transpire more quickly?
Define the three processes by which plants absorb water and minerals from the soil.
Define the termTranspiration
Comment on the following statement:
A well-watered potted plant shows wilting of leaves on a hot sunny day.
Litmus paper is used to demonstrate transpiration from the leaves of the green plant.
Choose the correct answer:
The percentage of cuticular transpiration in plants is _____________
Define the following term:
Transpiration
Give Technical Term
When cobalt chloride paper is placed on lower and upper surface of the leaf, the paper of which side becomes more pink?
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.
Name the cell that surrounds the stoma.
What type of transpiration is possible in the xerophyte Opuntia?
Boojho wanted to test the presence of starch in leaves. He performed the following steps.
- He took a leaf and boiled it in water.
- He placed the leaf in a petri dish and poured some iodine over it.
He did not get the expected result. Which step did he miss? Explain.
Transpiration takes place through ______.
Write a note on Transpiration.
Will the ascent of sap be possible without the cohesion and adhesion of the water molecules? Explain.
Water molecule is very polar. Polar end of molecule attracts opposite charges on another water molecule (acts like magnet). How will you explain this property of water with reference to upward movement of water? Comment on the upward movement of water given the intermolecular hydrogen bonding in water.
Define the term Vital capacity.
Name the structures through which Transpiration occur in a plant.
