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प्रश्न
Name the plant part which bends in the direction of gravity but away from light.
उत्तर
Roots bend in the direction of gravity but away from the light.
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संबंधित प्रश्न
What is the stimulus in thigmotropism?
Give one example of the movement of a plant part which is caused by the loss of water (or migration of water).
One of the following is not caused by the growth related movement of the concerned plant part. This is:
P and Q are two types of plants having weak stems which cannot stand upright on their own. The plants P and Q have organs R and S respectively which can grow towards any support which they happen to touch and wind around that support. It is observed that organ R originates from the leaves of the plant whereas organ S originates directly from the stem of the plant.
(a) What is (i) R, and (ii) S?
(b) What is the name of growth movement exhibited by the organs R and S?
(c) Name the stimulus involved in this case.
(d) State whether the behaviour of organs R and S is a tropic movement or a nastic movement.
(e) Name one plant like P and another plant like Q.
The response of a plant part towards gravity is ______.
Name the part of plant which shows positive geotropism. Why?
The Scientific term used to represent the bending of roots toward water is called geotropism.
The petals of the moon flower open up in the morning and close in the evening. This is called photo nasty.
Give the scientific term for the following:
Growth-dependent movement in plants.
Give an example of negative hydrotropism.
