Question

describe various types of tropic movement

Answer 1

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Tropic movements. When a plant shows some growth movement in response to a stimulus, it is known as tropism. ... Discussed below are a few types of tropism. Phototropism: Plants grow towards or away from the light, the type of tropism in the response to light is called phototropism.

Answer 2

$\huge\textbf{Tropic movements}$

Movement of plant towards stimuli is called tropic movement. It can be in the direction of the stimuli or away from the stimuli. 



$\huge\textbf{Types}$

1. PHOTOTROPISM :-

The movement of plant towards light is called phototropism. 

Ex :- Take a plant and put it near the window then you see that it's stem moves toward in the direction of light showing + ve phototropism and roots show - ve phototropism.

2. THIGMOTROPISM :-

Movement of plants toward chemicals is called thigmotropism. 

Ex :- Coiling of plants.

3. CHEMOTROPISM :- 

Movement of plants toward chemicals is called chemotropism.

Ex :- Growth of pollen tube towards ovule.

4. HYDROTROPISM :-

Movement of plants toward water is called hydrotropism.

Ex :- Growth of tomato roots in the direction of water then it's root shows + ve hydrotropism and stem shows - ve hydrotropism.

5. GEOTROPISM :- 

Movement of plants toward earth is called geotropism.

Ex :- Take a portaid plant and put it horizontally towards earth then it's root shows + ve geotropism and stem shows - ve geotropism.