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प्रश्न
What is the stimulus in geotropism?
उत्तर
The stimulus in geotropism is Gravity.
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संबंधित प्रश्न
How do auxins promote the growth of a tendril around a support?
Give one example of a plant part which is positively phototropic but negatively geotropic.
The root of a plant grows downward. This is known as ______.
Define hydrotropism. Give one example of hydrotropism. State whether this example is of positive hydrotropism or negative hydrotropism. Illustrate your answer with the help of labelled diagram.
A growing seedling is kept in a dark room. A burning candle is placed near it for a few days. The top part of seedling bends towards the burning candle. This is an example of :
(a) chemotropism
(b) hydrotropism
(c) phototropism
(d) geotropism
When the leaves of a Mimosa pudica plant are touched with a finger, they fold up quickly. This is an example of ______.
Dandelion flowers open the petals in bright light during the daytime but close the petals in dark at night. This response of dandelion flowers to light is called:
The bending of the stem of a plant towards a source of light is caused by the action of a phytohormone known as :
(a) abscisic acid
(b) auxin
(c) gibberellins
(d) cytokinin
The growth of tendrils in pea plants is due to
Heliotropism is a kind of ______.
