Which plant hormone is linked with growth inhibition and wilting of leaves?
Answer and explanation
Correct answer: Abscisic acid
Abscisic acid, commonly abbreviated as ABA, is associated with growth inhibition and plant responses to stressful conditions such as water shortage. During stress, it promotes stomatal closure, reducing water loss, and is therefore linked with wilting and dormancy-related responses. Gibberellin generally promotes stem growth, and cytokinin supports cell division and delays leaf ageing. Thyroxine is an animal hormone, so option C is the only suitable answer.
Frequently asked questions
What is the correct answer to this question?
Abscisic acid
Why is this the correct answer?
Abscisic acid, commonly abbreviated as ABA, is associated with growth inhibition and plant responses to stressful conditions such as water shortage. During stress, it promotes stomatal closure, reducing water loss, and is therefore linked with wilting and dormancy-related responses. Gibberellin generally promotes stem growth, and cytokinin supports cell division and delays leaf ageing. Thyroxine is an animal hormone, so option C is the only suitable answer.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Control and Coordination. Topic: Plant hormones.
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