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प्रश्न
Give a reason.
What happens to the movement of the air-bubble if the apparatus shown above is kept in dark.
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उत्तर
Movement of the air bubble will be decreased or slow.
Reason: During dark, stomata remains closed due to which the rate of transpiration decreases which hence decreases the movement of air bubble.
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संबंधित प्रश्न
Fill in the blank:
Water is lost from the leaves by__________.
Give suitable explanation for the following:
Cork and bark of trees help in preventing loss of water
Give a reason.
What happens to the movement of the air-bubble if the apparatus shown above is kept in front of a fan?
Give a reason.
What happens to the movement of the air-bubble if the apparatus shown above is kept in sunlight.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Calcium chloride paper is used to demonstrate transpiration
Transpiration is a necessary evil in plants. Explain.
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.
The radio labelled carbon in carbon dioxide supplied to potato plants in an experiment was seen in the tuber eventually. Trace the movement of the labelled carbon dioxide.
A root hair is derived from ______ cell.
Which of the following is an external factor affecting the rate of transpiration?
