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What is the driving force for water movement in xylem?

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Important Questions on Transpiration

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What is the main function of stomata in water transport?
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What is the pathway of water through the symplast?
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During the ascent of sap in plants, what is the primary role of the xylem vessels?
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How does the rate of transpiration affect water movement?
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Which environmental factor has the greatest influence on transpiration?
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How does temperature influence transpiration rate?
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Which cells in the xylem facilitate upward water movement?
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Given below is an example of a certain structure and its special functional activity. On a similar pattern fill in the blanks with suitable functions:
Example: chloroplast and photosynthesis: xylem and _____. (Conduction of sucrose/Conduction of water)
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What regulates the opening and closing of stomata?
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In the xylem, a continuous chain of water, when it is broken, is re-established by:
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Which pathway involves water movement through cell walls?
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Which tissue is responsible for water conduction in plants?
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What prevents the collapse of xylem vessels under pressure?
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What is the significance of cohesion-tension theory?
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What is the primary mechanism responsible for the ascent of sap in plants?
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Which part of the plant absorbs the most water?
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Cotyledons are also called-
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Ascent of sap takes place through:

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Why is adhesion important in water movement?
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What property of water allows it to move against gravity in plants?