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प्रश्न
What is meant by the term transpiration stream?
उत्तर
A pulling force called suction, caused by the evaporation of water in a leaf draws a long, continuous column of water through the xylem from the root to the leaf. This is called the transpiration stream.
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संबंधित प्रश्न
Which one of the following favours the fastest transpiration rate?
Name the factors which affect the rate of transpiration? State their role in each case.
Which of the following statements are true and which ones are false? Give reason in support of your answer.
Hydathodes are similar to stomata in plant physiology.
Briefly explain how the rate of transpiration is affected by
Intensity of light
Choose the correct answer:
Transpiration is more ____________
Give Reasons for the following:
Young plants wilt on a hot sunny day.
Explain the Term
Cuticular transpiration
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Root hairs are the extensions of the outer epidermal cells of the root
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Transpiration takes place only in green plants
