Control and Coordination


Control and Coordination logoSubject: Biology    Exam: Medical Foundation 1 Year

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Important Points

No formulae are there for Nervous and Hormonal systems, please refer to notes and tips and tricks for important points
The working together of the various organs of an organism in a systematic manner so as to produce a proper response to the stimulus, is called coordination.
Plants show two different types of movements:
(i)Movements independent of growth (Nastic movements)
Movements due to growth (Tropic movements or tropism)
Phototropism is the movement of a part of the plant in response to light. Shoots generally grow towards light and are said to be positively phototropic, while roots grow away from light and are said to be negatively phototropic.
Geotropism is the upward and downward growth of shoots and roots in response to the pull of earth or gravity.
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