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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
- Which one of the following biomolecules is correctly characterized?
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- How many pairs of sympathetic ganglia are present in ANS
- In Eichhornia parenchyma developes air space,such parenchyma with air cavities
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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
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