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प्रश्न
Name the stimulus which causes the following movements in plants.
phototropism, thigmotropism, hydrotropism and geotropism
उत्तर
|
Tropic movement |
Stimulus |
|
Phototropism |
Light |
|
Thigmotropism |
Touch |
|
Hydrotropism |
Water |
|
Geotropism |
Gravity |
APPEARS IN
संबंधित प्रश्न
What does a root do in response to gravity? What is this phenomenon known as?
What is the difference between photonasty and thigmonasty?
Name the plant organ which is positively hydrotropic.
The tropic movement that helps the climbing vines to find a suitable support is ______.
The growth of pollen tubes towards ovules is due to
When the leaves of a sensitive plant are touched with a finger, they fold up, and when the light fades at dusk the petals of a sunflower. These two plants show ______ and ______ movements.
The opening and closing of the Moonflower is not a tropism because the movement in this is ______.
Write the scientific terms used to represent the following:
Growing of roots towards the gravity.
Name a hormone which is responsible for phototropism
Study the diagrams given below and answer the following questions:
- Name the structures shown as X and Y in the figures (A) and (B), respectively.
- Write the functions performed by the structures X and Y.
- Name the phenomenon depicted and define it.
- How do the structures X and Y differ from each other?
- Give examples of the plants which show the said phenomenon.
