| ⇦ | 
| ⇨ |
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: - Vitamin A rich transgenic plant is
- Which is not correctly matched for organism and its cell wall degrading enzyme?
- Pacinian corpuscles occur in the skin of certain parts of body in mammals. These are
- In vertebratessimple reflex action is
- Tissue culture technique can produce infinite number of new plants
Topics: Plant Growth and Development
(126)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Vitamin A rich transgenic plant is
- Which is not correctly matched for organism and its cell wall degrading enzyme?
- Pacinian corpuscles occur in the skin of certain parts of body in mammals. These are
- In vertebratessimple reflex action is
- Tissue culture technique can produce infinite number of new plants
Topics: Plant Growth and Development (126)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply