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प्रश्न
To which directional stimuli do shoots respond?
उत्तर
Shoots of a plant respond to light.
APPEARS IN
संबंधित प्रश्न
Plant roots grow downward in response to ______.
Why is the folding up of the leaves of a sensitive plant on touching with a finger not a tropism?
Analogy:
Hydrotropism: Response towards water:: Phototropism: ______.
The petals of the moon flower open up in the morning and close in the evening. This is called photo nasty.
Write the scientific terms used to represent the following:
Bending of roots towards the water.
Why do roots of halophytes show negative geotropism?
Name a plant hormone responsible for bending of a shoot of a plant when it is exposed to unidirectional light. How does is promote phototropism?
The height of a plant is regulated by ______.
Differentiate between:
Positive and negative tropism
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.
