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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: - Number of thylakoids in a granum is
- The highest number of species in the world is represented by
- The real force responsible for the movement of water from one cell to another cell
- Generally epiderms is single layered but in certain leaves,multilayered upper
- Snake, a terrestrial animal that excretes nitrogen wastes in the form
Topics: Plant Growth and Development
(126)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Number of thylakoids in a granum is
- The highest number of species in the world is represented by
- The real force responsible for the movement of water from one cell to another cell
- Generally epiderms is single layered but in certain leaves,multilayered upper
- Snake, a terrestrial animal that excretes nitrogen wastes in the form
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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