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प्रश्न
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 |
उत्तर
| Column A | Column B |
| Roots growing downwards into soil. | Positive geotropism |
| Shoots growing towards the light. | Positive phototropism |
| Shoots growing upward. | Negative geotropism |
| Roots growing downwards away from light. | Negative phototropism |
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संबंधित प्रश्न
What is the stimulus in geotropism?
What does a stem (or shoot) do in response to gravity? What is this phenomenon known as?
How are tropic movements helpful to plants? Explain with an example.
What is meant by positive tropism and negative tropism? Explain with examples.
What is the difference between thigmotropism and thigmonasty? Name one plant which exhibits thigmotropism and one plant which exhibits thigmonasty. What behaviour (or responses) of these plants make you think that they exhibit thigmotropism and thigmonasty respectively?
A growing seedling is kept in a dark room. A burning candle is placed near it for a few days. The top part of seedling bends towards the burning candle. This is an example of :
(a) chemotropism
(b) hydrotropism
(c) phototropism
(d) geotropism
The movement of sunflower in accordance with the path of sun is due to
In the given figure (a), (b) and (c), which appears more accurate and why?
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| (a) | (b) | (c) |
Which parts of a plant exhibit Negative geotropism?
Define the following term:
Tropism
