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प्रश्न
A growing seedling is kept in the dark room. A burning candle is placed near it for a few days. The tip part of the seedling bends towards the burning candle. This is an example of ______.
पर्याय
Chemotropism
Geotropism
Phototropism
Thigmotropism
उत्तर
A growing seedling is kept in the dark room. A burning candle is placed near it for a few days. The tip part of the seedling bends towards the burning candle. This is an example of Phototropism.
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संबंधित प्रश्न
Name one example of the movement of a plant part which is very quick and can be observed easily.
Give the scientific terms used to represent the Bending of a shoot towards light.
The growth of tendrils in pea plants is due to the :
(a) effect of sunlight on the tendril cells facing the sun
(b) effect of gravity on the part of tendril hanging down towards the earth
(c) rapid cell division and elongation in tendril cells that are away from the support
(d) rapid cell division and elongation in tendril cells in contact with the support
Which of the following are not tropisms?
(i) growing of pollen tube in response to a sugary substance
(ii) folding up of leaves of sensitive plant in response to touch
(iii) winding of tendril around a support in response to touch
(iv) opening up of the leaves of a daisy flower in response to light
(a) (i) and (ii) (b) (ii) and (iii) (c) (i) and (iv) (d) (ii) and (iv)
The response of plants to gravity is known as geotropism. How are plant parts sensitive to gravity? Describe with the help of a diagram.
The tropic movement that helps the climbing vines to find a suitable support is ______.
Response of plant roots towards water is called:
The movement of shoot towards light is
The petals of the moon flower open up in the morning and close in the evening. This is called photo nasty.
Name the stimulus which causes the following movement in plant:
Thigmotropism
