NEET Biology question

Not in NEET syllabus

Which of the following theories gives the latest explanation for the closure of stomata?

(A)ABA theoryCorrect
(B)Munch theory
(C)Starch-glucose theory
(D)Active K⁺ transport theory

Answer: (A)

Solution

The abscisic acid (ABA) theory, in which stress-induced ABA inhibits the guard-cell H⁺ pump and K⁺ influx, causing efflux of solutes and loss of turgor, is the

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Question ID VK-127609