Advertisements
Advertisements
प्रश्न
Which of the following is not caused by a growth movement?
पर्याय
Bending of the shoot of a plant in response to light.
Closing up of leaves of a sensitive plant on touching with an object.
Climbing up of a plant on an object by using tendrils.
Movement of the root of a plant towards a source of water.
उत्तर
Closing up of leaves of a sensitive plant on touching with an object.
Explanation:
This is a non-directional movement of a plant in response to touch.
APPEARS IN
संबंधित प्रश्न
What happens to the moonflower
- during the daytime, and
- at night?
What is this phenomenon known as?
What does a tendril do in response to the touch of a support? What is this phenomenon known as?
Define chemotropism.
Dandelion flowers open the petals in bright light during the daytime but close the petals in dark at night. This response of dandelion flowers to light is called:
Which of the following are not tropisms?
(i) growing of pollen tube in response to a sugary substance
(ii) folding up of leaves of sensitive plant in response to touch
(iii) winding of tendril around a support in response to touch
(iv) opening up of the leaves of a daisy flower in response to light
(a) (i) and (ii) (b) (ii) and (iii) (c) (i) and (iv) (d) (ii) and (iv)
How is movement in plants different from that in animals?
A student accidentally places her hand on the flame of the candle and quickly pulls her hand away. The flame represents:
In the given figure (a), (b) and (c), which appears more accurate and why?
 |
 |
 |
| (a) | (b) | (c) |
The petals of the moon flower open up in the morning and close in the evening. This is called photo nasty.
Give an example for the movement of plant part which is very quick and can be observed easily.
