Advertisements
Advertisements
प्रश्न
Growth of root towards water is ______.
उत्तर
Growth of root towards water is hydrotropism.
संबंधित प्रश्न
A plant's response to gravity is called ______.
What is meant by ‘positive geotropism’ and ‘negative geotropism’? Give one example of each type. Draw a labelled diagram to illustrate your answer, indicating the plant part, which shows positive geotropism, and the plant part, which shows negative geotropism.
The growth movement of a plant part in response to the touch of an object is called :
(a) thigmonasty
(b) hydrotropism
(c) thigmotropism
(d) geotropism
What are tropic movements? Briefly explain various types of tropic movements in plants.
The tropic movement that helps the climbing vines to find a suitable support is ______.
State whether true or false. If false, correct the statement.
Shoot is positively phototropic and negatively geotropic.
Any change in the environment to which an organism responds is called ____________.
Analogy:
Hydrotropism: Response towards water:: Phototropism: ______.
Where are auxins synthesized in a plant? Which organ of the plant shows:
- Positive phototropism
- Negative geotropism
- Positive hydrotropism
The figure given below depicts a kind of tropic movement in plants. Study the same and answer the following questions:
- What kind of a movement is shown in the figure? Define it.
- How does this movement differ from geotropism?
- Name the stimulus responsible for thigmotropism. Give one example of a plant showing thigmotropism.
- Name one stimulus which gives a positive response for the roots but a negative response for the shoot.
- Draw a neat and labelled diagram of the part of a plant showing leaf tendril. Name the plant.
