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| fototropisme |
One of the characteristics of living things are able to move. Motion in living organisms is usually done in response to the arrival of a stimulus. Stimuli that occur can be derived from outside or from within the body itself. How to plant? if plants can move?Plant and equipment to react if any stimulus, but how different from humans and animals. Here are some names on the motion of plants.
1. Motion tropism, is moving some plants that the body is determined by the arrival direction of motion stimuli.
- Positive tropism, approached the direction of stimulation,- Negative tropism, away from the direction of stimulation,- Fototropisme, due to light stimulation,- Hidrotropisme, as a result of stimulation of water,- Geotropisme, due to gravity stimulation, and- Tigmotropisme, as a result of touch stimulation.
2. Motion nasty, when the direction of motion of most bodies of plants is not determined by the direction of arrival of stimuli. Closed leaf china petai at night, called niktinasti.
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| china petai |
3. Taksis motion, if motion in plants conducted by the whole plant body.- Kemotaksis, taksis motion caused by chemical substances.
- Fototaksis, taksis motion caused by light.
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| peas |
4. Hygroscopic movement, movement of plants because of changes in moisture or humidity. Peas skin open because of differences in skin moisture content of peas.
