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The leaf of Mimosa on touching becomes flaccid and droops down. This is due to
Options
(a) water goes into pulvinus
(b) water movement
(c) based on water concentration
(d) based on water minerals
Correct Answer:
water movement
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
- Most abundant water insoluble polysaccharide of plant cell wall is
- If you are asked to classify the various algae into distinct groups
- Purines possess nitrogen at
- Adrenocorticotrophic hormone is secreted by
- The cells lining the blood vessels belong to the category of:
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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