Immediate Resposnse to Stimulus in Plants
Immediate Response to Stimulus in Plants
Like all other organisms plants also show response to changes occurring in environment. Plants respond to these changes or stimulus by showing different type of movements. These movements can be growth movements or nastic movements. Growth movements help the plant to grow whereas nastic movement do not perform any such kind of function. Nastic movements show immediate respond to a stimulus.
Immediate response to stimulus does not involve any growth, rather plant moves its leaves in response to touch. Sensitive plants give immediate response to the stimulus. Movement of part of plant occurs at a point different from the point of touch. Plant communicates the information that a touch has occurred. This is done in the following:
a) Plants use electro-chemical means to convey the information from cell to cell as there are no specialized tissue for the conduction of information.
b) Plant cells change their shape by changing the amount of water in them, resulting in either swelling or shrinking of cell and finally in shape.
Plant cells change their shape by changing the amount of _________________ in them, resulting in either swelling or shrinking of cell and finally in shape. | |||
| Right Option : A | |||
| View Explanation | |||
Nyctinastic movement is the movement of plant or plant part in response to | |||
| Right Option : C | |||
| View Explanation | |||
Nastic movements are __________ plant movements that occur in response to environmental stimulus. | |||
| Right Option : B | |||
| View Explanation | |||
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