

InterviewSolution
1. |
What is the significance of tropic movementsin plants ? Explain any two types of tropicmovements?(DDE 2017) |
Answer» Tropic movementsareimportantfor plantsbecause of the following reasons:(1) They serve as protective function.(2) They help in developing a sudden response for a stimulus or change. (3)It helps in the growth of pollen tubes towards the ovules. Plants show two different types of movements, one is independent of growth and the other is dependent on growth.The movement of a plant part in response to light is called phototropismThe movement of a plant part in response to gravity is called geotropism.The movement of a plant part in response to chemicals is called chemotropism.The movement of a plant part in response to water is called hydrotropism.The directional movement of a plant part in response to touch of an object is called thigmotropism. |
|