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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
Related Questions: - During anaerobic digestion of organic waste such as in producing biogas which
- Which are the first organisms to colonize on a bare rock?
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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
- During anaerobic digestion of organic waste such as in producing biogas which
- Which are the first organisms to colonize on a bare rock?
- Mycorrhiza works as
- When the movement of plant or plant body is governed by external stimulus
- Which of the following regions of our country are known for their rich biodiversity?
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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