Advertisements
Advertisements
प्रश्न
Define chemotropism.
उत्तर
The growth of plant parts in response to chemical stimuli is known as chemotropism.
APPEARS IN
संबंधित प्रश्न
Name the plant part which bends in the direction of gravity but away from light.
To which directional stimuli do roots respond?
Name the plant organ which is positively phototropic.
Why is the folding up of the leaves of a sensitive plant on touching with a finger not a tropism?
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.
What is chlorophyll?
Thigmonasty can be seen in ______.
What does a Mimosapudica plant do in response to touch? What is the phenomenon known as?
Name a hormone which is responsible for phototropism
Growth of root towards water is ______.
