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प्रश्न
Where is the auxin hormone made in a plant stem?
उत्तर
Auxin hormone is made in the cells of the tip of a plant stem.
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संबंधित प्रश्न
Name the type of chemical substances that control the growth in plants.
Give one example of a plant part which is positively phototropic but negatively geotropic.
Define geotropism.
Name one plant part which exhibits positive thigmotropism.
The movement of sunflower in accordance with the path of the sun is due to :
(a) photonasty
(b) phototropism
(c) hydrotropism
(d) chemotropism
The plant part which exhibits negative geotropism is :
(a) root
(b) stem
(c) branch
(d) leaves
Response of plant roots towards water is called:
The movement of shoot towards light is
______ flowers bloom as the temperature increases.
Assertion (A): If the plant part moves in the direction of gravity, it is called positive geotropism.
Reason (R): Stem shows positive geotropism.
