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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: - During ecological succession:
- Ringworm in humans is caused by:
- The closely related morphologically similar sympatric populations, but
- Restriction enzyme was discovered by
- The process by which organisms with different evolutionary history evolve similar
Topics: Plant Growth and Development
(126)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- During ecological succession:
- Ringworm in humans is caused by:
- The closely related morphologically similar sympatric populations, but
- Restriction enzyme was discovered by
- The process by which organisms with different evolutionary history evolve similar
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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