What are tropic movements? Name the types of tropic movements in plants

CBSE Class 10 CBSE Class 10 Science
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What are tropic movements? Name the types of tropic movements in plants.

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The bending or movement of a part of plant in response to the external stimulus is called tropism or tropical movement. It is of following types :

  1. Phototropism: It is a response to light. It may be towards light (positive) or away from the light (negative).
  2. Geotropism: It is a response to gravity-. It may be towards stimulus (positive) and away from the stimulus (negative).
  3. Chemotropism: Response to chemicals. It may be positive or negative.
  4. Hydrotro pism: Response to water. It may be positive or negative.