Why is abscisic acid considered like a stress hormone?
Answer and explanation
Correct answer: Because it is linked with growth inhibition and response during water shortage
The governing concept is plant hormonal control during stress. Abscisic acid, or ABA, inhibits growth and promotes protective responses such as stomatal closure when water is scarce, thereby reducing water loss. Hence option A correctly connects ABA with growth inhibition and water-stress response. Heartbeat, blood sugar, and reflex arcs belong to animal physiology or nervous coordination, so options B, C, and D are unrelated distractors.
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What is the correct answer to this question?
Because it is linked with growth inhibition and response during water shortage
Why is this the correct answer?
The governing concept is plant hormonal control during stress. Abscisic acid, or ABA, inhibits growth and promotes protective responses such as stomatal closure when water is scarce, thereby reducing water loss. Hence option A correctly connects ABA with growth inhibition and water-stress response. Heartbeat, blood sugar, and reflex arcs belong to animal physiology or nervous coordination, so options B, C, and D are unrelated distractors.
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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