MHT CET · BIOLOGY · STD 12 - 7. Plant Growth and Mineral Nutrition
The abscissic acid acts as antitranspirant in plants by the following processes EXCEPT ________.
- A making the guard cells hypotonic
- B making the guard cells turgid
- C prevents uptake of \(K ^{+}\) icons by guard cells during night time
- D efflux of \(K ^{+}\) icons from guard cells during day time
Answer & Solution
Correct Answer
(B) making the guard cells turgid
Step-by-step Solution
Detailed explanation
ABA induces efflux of K+ ions, making guard cells flaccid/hypotonic and causing stomatal closure.
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