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Name One Example of the Movement of a Plant Part Which is Very Quick and Can Be Observed Easily. - Science

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प्रश्न

Name one example of the movement of a plant part which is very quick and can be observed easily.

उत्तर

Thigmonasty is the movement of plant, especially prevalent in sensitive plants, which is very quick and can be observed easily. If we touch the leaflets of a sensitive plant, they fold up and droop immediately.

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पाठ 2: Control and Coordination - Exercise 1 [पृष्ठ ९२]

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लखमीर सिंह Biology (Science) [English] Class 10
पाठ 2 Control and Coordination
Exercise 1 | Q 7 | पृष्ठ ९२

संबंधित प्रश्‍न

What does a stem (or shoot) do in response to light? What is this phenomenon known as?


Distinguish between tropic movements and nastic movements in plants. Give examples to illustrate your answer.


Define phototropism. Give one example of phototropism.


The root of a plant is :
(i) positively phototropic but negatively geotropic
(ii) positively geotropic but negatively phototropic
(iii) negatively phototropic but positively hydrotropic
(iv) negatively hydrotropic but positively phototropic
(a) (i) and (ii)  (b) (ii) and (iii)  (c) (iii) and (iv)  (d) (i) and (


The stimulus in the process of thigmotropism is ______.


While conducting experiments to study the effect of various stimuli on the plants, it was observed that the roots of a plant X grow and bend towards two stimuli A and B but bend away from a third stimulus C. The stem of the plant X, however, bends away from stimuli A and B but bends towards the stimulus C. The stimulus B is known to act on the roots due to too much weight of the earth. Keeping these points in mind, answer the following question:

  1. What could stimulus A be?
  2. Name the stimulus B.
  3. What could stimulus C be?
  4. The branches of a fallen tree in a forest grow straight up in response to two stimuli. What could be these two stimuli out of A, B and C? Also name these two stimuli.

The response of a plant part towards gravity is ______.


The growth of pollen tubes towards ovules is due to


Arrange and rewrite the terms in the group in the correct order so as to be in a logical sequence, beginning with the term that is underlined.

Apical meristem, Positive phototropism, Auxins, Cell elongation.


Which parts of a plant exhibit Negative geotropism?


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