Why is it suitable to understand abscisic acid as both a growth inhibitor and a stress hormone?
Answer and explanation
Correct answer: Because it can inhibit growth and helps close stomata during water shortage
Abscisic acid, or ABA, is a plant hormone associated with growth inhibition and responses to environmental stress. During water shortage, ABA promotes stomatal closure, reducing transpiration and helping conserve water; it can also promote dormancy or suppress growth in suitable situations. It does not produce insulin, transmit animal nerve signals or control heartbeat. Therefore option A is correct.
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What is the correct answer to this question?
Because it can inhibit growth and helps close stomata during water shortage
Why is this the correct answer?
Abscisic acid, or ABA, is a plant hormone associated with growth inhibition and responses to environmental stress. During water shortage, ABA promotes stomatal closure, reducing transpiration and helping conserve water; it can also promote dormancy or suppress growth in suitable situations. It does not produce insulin, transmit animal nerve signals or control heartbeat. Therefore option A is correct.
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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