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प्रश्न
Name the plant organ which is negatively geotropic.
उत्तर
Stem
APPEARS IN
संबंधित प्रश्न
What does a Mimosa pudica plant do in response to touch? What is this phenomenon known as?
To which directional stimuli do shoots respond?
A plant's response to light is called ______.
The root of a plant is :
(i) positively phototropic but negatively geotropic
(ii) positively geotropic but negatively phototropic
(iii) negatively phototropic but positively hydrotropic
(iv) negatively hydrotropic but positively phototropic
(a) (i) and (ii) (b) (ii) and (iii) (c) (iii) and (iv) (d) (i) and (
Which of the following acts as a stimulus in the process of hydrotropism?
(a) hydrocarbon
(b) hydrogen oxide
(c) hydrogen chloride
(d) hydrogen peroxide
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.
How is movement in plants different from that in animals?
The response of a plant part towards gravity is ______.
Plants take in carbondioxide for photosynthesis but need ______ for their living.
Name the part of plant which shows positive geotropism. Why?
