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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
- In hurdle race, what is the major energy source of the leg muscle?
- The type of placentation in which ovary is syncarpus unilocular and ovules
- Four sepals arranged in two whorls is characteristic of family
- Adenosine triphosphate possess
- Which one of the following hormone induces flowering
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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