What is the difference between movement of flower in sunflower plant and closing of the leaves in the Mimosa pudica.?
Sunflower moves from east to west during day time in direction of sun and this movement is called heliotropism i.e. movement of flower in response to stimulus sunlight. Again in evening time it moves from west to east direction. The leaves of Mimosa pudica droops down when touched and this is an example of thigmonasty i.e. movement of leaves in response to stimulus touch.
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Observe the given picture.
a) Identify this plant. What type of special movement is shown by this plant?
b) What are the other movements seen in this plant?Tamilnadu Board Science
What is nastic movement?Tamilnadu Board Science
Give an example for the movement plant part which is very quick and can be observed easily.Tamilnadu Board Science
The petals of moon flower open up in morning and closes in the evening. This is called photonasty.Tamilnadu Board Science
What does a Mimosa pudica plant do in response to touch? What is the phenomenon known as?Tamilnadu Board Science
i) What happens to the dandelion flower
a) during the daytime?
b) at night?
ii) What is the phenomenon known as?Tamilnadu Board Science
Which flowering plant shows photonasty just opposite to that of Dandelion?Tamilnadu Board Science
What is the other name for thigmonasty?Tamilnadu Board Science
Name the movement seen in Pneumatophores of Avicennia.Tamilnadu Board Science
There are 3 plants A, B and C. The flowers of A open their petals in bright light during the day but close them when it gets dark at night. On the other hand, the flowers of plant B open their petals at night but close them during the day when there is bright light. The leaves of plant C fold up and droop when touched when fingers or any other solid object.
a) Name the phenomenon shown by the flowers of plant A and B.
b) Name one flower each which behaves like the flowers of plant A and B.
c) Name the phenomenon exhibited by the leaves of plant C.
d) Name a plant whose leaves behave like those of plant C.’Tamilnadu Board Science