what is Geo tropism?
Answers
Explanation:
Geotropism is the directional movement in response to gravity.
The roots of the plants always grow downwards in response to gravity.
And the stems of the plants grow upwards, away from the pull of gravity.
FOR example,
If we take a potted plant growing in a transparent jar. Just keep the plant in the normal conditions.. Its roots will grow downwards. So it is a positive Geotropism.
Nd now keep the potted plant in a horizontal position. Now the roots and the stems will grow in parallel to ground.
After few days u ll notice that the potted Plant bend towards the earth and the stem bends upwards, away from the earth.
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Plants can sense the Earth's gravitational field. Geotropism is the term applied to the consequent orientation response of growing plant parts. Roots are positively geotropic, that is, they will bend and grow downwards, towards the center of the Earth. In contrast, shoots are negatively geotropic, that is, they will bend and grow upwards, or away, from the surface.