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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: - Fight- or- flight reaction cause activation of:
- Epiphytes are the plants which are dependent on other plants
- Which pollutant released from motor vehicles?
- Which one of the following groups of animals reproduces only by sexual means?
- Which of the following contains the actual genetic part of a sperm?
Topics: Plant Growth and Development
(126)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Fight- or- flight reaction cause activation of:
- Epiphytes are the plants which are dependent on other plants
- Which pollutant released from motor vehicles?
- Which one of the following groups of animals reproduces only by sexual means?
- Which of the following contains the actual genetic part of a sperm?
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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