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प्रश्न
Why is the folding up of the leaves of a sensitive plant on touching with a finger not a tropism?
उत्तर
The folding up of leaves in a sensitive plant on touching is not a tropism because it is a non-directional movement. Tropism is a directional movement where the direction of the movement of the plant part is towards the stimulus.
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संबंधित प्रश्न
What does a stem (or shoot) do in response to gravity? What is this phenomenon known as?
What is a tendril?
Define chemotropism.
Answer the following question.
What is tropism?
Match column A with column B.
| Column A | Column B |
| Roots growing downwards into soil. | Positive phototropism |
| Shoots growing towards the light. | Negative geotropism |
| Shoots growing upward. | Negative phototropism |
| Roots growing downwards away from light. | Positive geotropism |
The leaves of Mimosa are sensitive to ____________.
The growth of tendrils in pea plants is due to
Assertion (A): If the plant part moves in the direction of gravity, it is called positive geotropism.
Reason (R): Stem shows positive geotropism.
List two differences between the movement of leaves of a sensitive plant and the movement of a shoot towards light.
The instrument which can be used to demonstrate geotropism is ______.
