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The most abundant naturally occurring plant hormone is
Options
(a) indole-3 acetic acid
(b) ABA
(c) cytokinin
(d) IBA
Correct Answer:
indole-3 acetic acid
Explanation:
IAA brings about cell wall extension by activating proton pump which maintains the cell wall in an acidic condition of around 4 pH. Under these conditions, the cell wall pressure is reduced and water enters the cell, accompaineed by an increase in cell volume. As the cell increases in volume, the new cell wall material becames necessary to stabilise the wall. IAA is naturally occuring auxin.It also promotes cell enlargements, cell division in vascular cambium, root intiation enlargement, cell division in va
Related Questions: - The essential components of ecosystem, without which ecosystems cannot function, are
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Topics: Plant Growth and Development
(126)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The essential components of ecosystem, without which ecosystems cannot function, are
- A drunk person has the earliest effect on which part of the brain
- Genetic drift operates only in
- Which of the following statements are true or false
- Loss of forests, urbanization, increasing pollution are all due to
Topics: Plant Growth and Development (126)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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