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The leaves of Mimosa pudica droop down, when touched, due to
Options
(a) nyctinasty
(b) seismonasty
(c) photonasty
(d) epinasty
Correct Answer:
seismonasty
Explanation:
Nastic movements occur in response to a stinulus. It is independent of its direction. They are shown by bifacial organs (leaves, sepals, petals) and are in response to diffused external stimulus. Seismonastic movements are due to shock or touch stimulus. Such movements are shown by Mimosa pudica. The leaf of Mimosa is compound having four pinna and each pinna is having many pinnules. If a terminal pinnule is touched, the whole leaf droops down. This is due to fact that at the bases of pinnules, pinna and wh
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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
- Benthic organisms are affected most by
- Technique of growing plants without soil in nutrient solution is called
- How many pairs of contrasting characters in pea plants were studied by Mendel
- Protista includes
- The movement of a gene from one linkage group to another is called :
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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