NEET Biology question

Not in NEET syllabus

A column of water within xylem vessels of tall trees does not break under its own weight because of

(A)Lignification of xylem vessels
(B)Positive root pressure
(C)Dissolved sugars in water
(D)Tensile strength of waterCorrect

Answer: (D)

Solution

Water molecules are held together by strong cohesive forces (hydrogen bonding), giving the water column a high tensile strength (able to withstand tension of up to about 30 atm or more in practice, with a theoretical

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Question ID VK-127856