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Question

Explain the term ‘irritability’ with respect to the plants.


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Solution

Irritability:

  1. Plants being living, show response to stimuli i.e, show movement to heat, light, electricity, gravity , certain chemicals ,etc.
  2. Hence, irritability is the capacity of plants or their particular organs to receive stimuli from the external environment and to respond to them.
  3. It expresses itself through some kind of movement and is an advantage to the plant since through these movements, it can adjust itself according to the conditions of the environment.

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