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प्रश्न
Plant roots grow ______ and in the direction of force of ______.
उत्तर
Plant roots grow downwards and in the direction of force of gravity.
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संबंधित प्रश्न
Give the scientific terms used to represent the Growth of a pollen tube towards ovule.
What does a root do in response to light? What is this phenomenon known as?
Give one example of a plant part which is positively hydrotropic as well as positively geotropic.
Name the plant part which bends towards light but away from the force of gravity.
The growth of a pollen tube towards the ovule caused by a sugary substance as stimulus is an example of :
(a) phototropism
(b) chlorotropism
(c) gravitropism
(d) chemotropism
The stimulus in the process of thigmotropism is ______.
Name the stimulus which causes the following movements in plants.
phototropism, thigmotropism, hydrotropism and geotropism
When the leaves of a sensitive plant are touched with a finger, they fold up, and when the light fades at dusk the petals of a sunflower. These two plants show ______ and ______ movements.
List two differences between the movement of leaves of a sensitive plant and the movement of a shoot towards light.
Name the following:
The tropic movement of plant parts in response to chemicals.
