NEET Biology question

Not in NEET syllabus

If the stem of a plant is cut while the xylem sap is under a state of tension, what will be the result?

(A)The xylem sap will sprout out
(B)Xylem sap will accumulate at the cut surface
(C)The cut surface will form air bubbles when placed in water
(D)Air will be pulled into the xylemCorrect

Answer: (D)

Solution

Because the xylem sap is under tension (negative pressure) rather than positive pressure during active transpiration, cutting the stem does not cause sap

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Question ID VK-127736