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GK QUESTION#3872

When a plant experiences a touch stimulus, how is the signal transmitted from one part of the plant to another?

  1. ABy emitting acoustic vibrations
  2. BVia nerve fibres similar to animals
  3. CBy rapid pigment change in leaves
  4. DThrough electro-chemical signalsCorrect answer
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Answer

D. Through electro-chemical signals

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Explanation

Plants can transmit responses to touch through electrical changes, ion movements and chemical signals between cells and tissues. They do not possess animal-like nerves.

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