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प्रश्न
Answer the following question.
What is tropism?
उत्तर
A growing movement of a plant in response to the external stimulus in which the direction of stimulus determines the direction of response is called tropism.
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संबंधित प्रश्न
How do auxins promote the growth of a tendril around a support?
Name the plant part which bends towards light but away from the force of gravity.
A plant's response to gravity is called ______.
Define phototropism. Give one example of phototropism.
The bending of the root of a plant away from a source of light is caused by a plant hormone called :
(a) cytokinin
(b) gibberellin
(c) abscisic acid
(d) auxin
What is meant by positive and negative tropic movements in plants? Explain them by giving suitable examples.
A growing seedling is kept in the dark room. A burning candle is placed near it for a few days. The tip part of the seedling bends towards the burning candle. This is an example of ______.
Assertion: Plants do have a nervous system for control and coordination.
Reason: Plants use electrochemical means to convey information from cell to cell.
Analogy:
Towards a stimulus: ______:: Away from the stimulus: Negative tropism.
Differentiate between:
Positive and negative tropism
