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प्रश्न
What does a stem (or shoot) do in response to light? What is this phenomenon known as?
उत्तर
The stem of a plant grows upwards in response to light. This phenomenon is known as phototropism.
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संबंधित प्रश्न
What is the stimulus in chemotropism?
Plant shoot grows upward in response to ______.
Why is the folding up of the leaves of a sensitive plant on touching with a finger not a tropism?
The stimulus in the process of thigmotropism is ______.
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
Name the stimulus which causes the following movements in plants.
phototropism, thigmotropism, hydrotropism and geotropism
The venus flytrap plants are examples of ______.
Assertion (A): If the plant part moves in the direction of gravity, it is called positive geotropism.
Reason (R): Stem shows positive geotropism.
Where are auxins synthesized in a plant? Which organ of the plant shows:
- Positive phototropism
- Negative geotropism
- Positive hydrotropism
Name the stimulus which causes the following movement in plant:
Thigmotropism
