Advertisements
Advertisements
प्रश्न
Define thigmotropism. Give one example of thigmotropism.
उत्तर
The directional movement of plant parts in response to touch is known as thigmotropism. The movement of tendrils of climbing plants towards the things they happen to touch is an example of thigmotropism.
APPEARS IN
संबंधित प्रश्न
Plant roots grow downward in response to ______.
Why is the closing of a dandelion flower at dusk (when it gets dark) not a tropism?
Define geotropism.
The growth of tendrils in pea plants is due to the :
(a) effect of sunlight on the tendril cells facing the sun
(b) effect of gravity on the part of tendril hanging down towards the earth
(c) rapid cell division and elongation in tendril cells that are away from the support
(d) rapid cell division and elongation in tendril cells in contact with the support
Answer the following question.
What is tropism?
The tropic movement that helps the climbing vines to find a suitable support is ______.
What is a tropic movement? Explain with an example.
The plant part which exhibits negative geotropism is ______.
Heliotropism is a kind of ______.
Analogy:
Towards a stimulus: ______:: Away from the stimulus: Negative tropism.
