Advertisements
Advertisements
प्रश्न
What is the difference between movement of flower in sunflower plant and closing of the leaves in the Mimosa pudica?
उत्तर
The stem of sunflower follows the path of sun from dawn to dusk (from east to west) due to light stimulus. But at night, it moves from west to east. The leaves of mimosa pudica closes on touching stimulus.
APPEARS IN
संबंधित प्रश्न
Design an experiment to demonstrate hydrotropism.
What is the stimulus in geotropism?
The response of leaves to the sunlight is called ______.
Name the plant organ which is positively hydrotropic.
Differentiate between:
Phototropism and chemotropism
What is meant by positive and negative tropic movements in plants? Explain them by giving suitable examples.
When the leaves of the Mimosa pudica plant are touched with a finger, they fold up quickly.
Why do stems show positive phototropism?
Observe the three figures given below. Which of the following depicts tropic movements appropriately?
 |
 |
 |
| A | B | C |
The leaves of the 'chhui-mui' plant begin to fold up and droop in response to a stimulus. Name the stimulus and write the cause for such a rapid movement. Is there any growth involved in the movement?
