Why can abscisic acid be called a stress hormone?
Answer and explanation
Correct answer: Because it helps close leaf stomata during water shortage
The governing concept is hormonal response to environmental stress. During water shortage, abscisic acid promotes stomatal closure, reducing transpiration and helping the plant conserve water. This protective action explains why it is called a stress hormone, so option A is correct. The other choices describe unrelated animal functions and do not represent the role of abscisic acid in plants.
Frequently asked questions
What is the correct answer to this question?
Because it helps close leaf stomata during water shortage
Why is this the correct answer?
The governing concept is hormonal response to environmental stress. During water shortage, abscisic acid promotes stomatal closure, reducing transpiration and helping the plant conserve water. This protective action explains why it is called a stress hormone, so option A is correct. The other choices describe unrelated animal functions and do not represent the role of abscisic acid in plants.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Control and Coordination. Topic: Plant hormones.
Student feedback
Was this question useful?
👍 0 Helpful 👎 0 Not helpful
Yes 0% No 0%
0 responsesStudent Reviews
No published reviews yet.
