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Abscisic acid causes [1991]
- a)stomatal closure
- b)stem elongation
- c)leaf expansion
- d)root elongation
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Abscisic acid causes [1991]a)stomatal closureb)stem elongationc)leaf e...
Abscisic acid is a stress hormone. During desication abscisic acid is synthesized which reduces transpiration by closure of stomata. It conserves water.
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Abscisic acid causes [1991]a)stomatal closureb)stem elongationc)leaf e...
Stomatal Closure:
Abscisic acid is a plant hormone that plays a crucial role in regulating various physiological processes in plants. One of the well-known functions of abscisic acid is its ability to induce stomatal closure.
Mechanism:
- Abscisic acid triggers the closure of stomata by activating ion channels in the guard cells.
- This leads to the efflux of ions from the guard cells, resulting in the loss of turgor pressure and subsequent closure of the stomatal pore.
Importance:
- Stomatal closure helps plants to conserve water during times of stress, such as drought or high temperatures.
- By closing the stomata, plants reduce water loss through transpiration, helping them survive in challenging environmental conditions.
Effect on other processes:
- Abscisic acid does not promote stem elongation, leaf expansion, or root elongation. Instead, it primarily acts to regulate responses to stress and control various aspects of plant growth and development.
Therefore, the correct answer is option A: stomatal closure. Abscisic acid plays a key role in this process, enabling plants to adapt to changing environmental conditions and maintain their water balance.
Abscisic acid is a plant hormone that plays a crucial role in regulating various physiological processes in plants. One of the well-known functions of abscisic acid is its ability to induce stomatal closure.
Mechanism:
- Abscisic acid triggers the closure of stomata by activating ion channels in the guard cells.
- This leads to the efflux of ions from the guard cells, resulting in the loss of turgor pressure and subsequent closure of the stomatal pore.
Importance:
- Stomatal closure helps plants to conserve water during times of stress, such as drought or high temperatures.
- By closing the stomata, plants reduce water loss through transpiration, helping them survive in challenging environmental conditions.
Effect on other processes:
- Abscisic acid does not promote stem elongation, leaf expansion, or root elongation. Instead, it primarily acts to regulate responses to stress and control various aspects of plant growth and development.
Therefore, the correct answer is option A: stomatal closure. Abscisic acid plays a key role in this process, enabling plants to adapt to changing environmental conditions and maintain their water balance.
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Abscisic acid causes [1991]a)stomatal closureb)stem elongationc)leaf expansiond)root elongationCorrect answer is option 'A'. Can you explain this answer?
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Abscisic acid causes [1991]a)stomatal closureb)stem elongationc)leaf expansiond)root elongationCorrect answer is option 'A'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Abscisic acid causes [1991]a)stomatal closureb)stem elongationc)leaf expansiond)root elongationCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Abscisic acid causes [1991]a)stomatal closureb)stem elongationc)leaf expansiond)root elongationCorrect answer is option 'A'. Can you explain this answer?.
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