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Sleep movements of leaves in some plants are due to
Options
(a) excess of respiration
(b) leaves stop photosynthesis
(c) excess of transpiration
(d) osmotic changes at the base of leaves
Correct Answer:
osmotic changes at the base of leaves
Explanation:
Sleep movement or nyctinasty (sleep movement during night) occurs in the leaves of many legumes and Oxallis is due to turgor changes in response to darkness. The leaves fold at night but open during the day. Leaves of Mimosa pudica also show sleep movement, called as seismonasty (shock movement) in response to physical contact, injury, electric current etc. The movement occurs due to osmotic changes.
Related Questions: - Larva of Balanoglossus is
- Ostrich have one urinary bladder,whereas all others birds have
- Solute potential of a solution is always
- Respiratory cycle where NADH₂ are produced is
- A shallow depression in the scapula which receives the head of the upper arm
Topics: Plant Growth and Development
(126)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Larva of Balanoglossus is
- Ostrich have one urinary bladder,whereas all others birds have
- Solute potential of a solution is always
- Respiratory cycle where NADH₂ are produced is
- A shallow depression in the scapula which receives the head of the upper arm
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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