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प्रश्न
Observe the diagram and answer the following;
 (i) |
 (ii) |
- Are these types of guard cells found in monocots or dicots?
- Which of these shows a higher water content (i) or (ii)?
- Which element plays an important role in the opening and closing of stomata?
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उत्तर
- These types of guard cells are found in dicots because as we know the shape is bean-shaped. Whereas monocots, it is usually dumble-shaped.
- Higher water content is shown in figure (i).
- The element that plays an important role in the opening and closing of stomata is the potassium ion.
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संबंधित प्रश्न
Fill in the blank:
Water is lost from the leaves by__________.
Define the term Transpiration stream
Distinguish between the following :
Cuticular transpiration and lenticular transpiration
Given alongside is the diagram of an experimental set-up to demonstrate a certain phenomenon in plants.
What is the purpose of the spring balance in the set-up?
Design an experiment to demonstrate the transpiration process.
Define the following term:
Transpiration
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.
Guard cells are responsible for the opening and closing of stomata.
Stamen has two parts called ______ and ______.
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.
Identify the wrong statement and correct it.
Leaves perform the function of transpiration only.
Why is transpiration called a necessary evil?
Excessive transpiration is due to ______.
The lower surface of leaf will have more number of stomata in a ______.
Briefly describe the following:
Angina Pectoris
A root hair is derived from ______ cell.
Enlist different advantages of transpiration.
(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.
