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प्रश्न
Give the scientific terms used to represent the Growing of roots towards the earth.
उत्तर
Geotropism
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संबंधित प्रश्न
Give one example of chemotropism. State whether this example is of positive chemotropism or negative chemotropism.
To which directional stimuli do shoots respond?
What are the different types of tropisms? Define each type of tropism. Write the name of stimulus in each case
The bending of the shoot of a plant in response to light is called :
(a) geotropism
(b) phototropism
(c) thigmotropism
(d) photonasty
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)
Plants exchange gases ______ continuously through these stomata.
Give an example of chemotropism.
Ali has some pea plants in his garden which need a support to grow as seen in the picture given below:
- Name the phenomenon depicted by the shoot in the given figure.
- Define the above phenomenon.
- Write the name of the part marked X.
Which parts of a plant exhibit Negative geotropism?
Study the diagrams given below and answer the following questions:
- Name the structures shown as X and Y in the figures (A) and (B), respectively.
- Write the functions performed by the structures X and Y.
- Name the phenomenon depicted and define it.
- How do the structures X and Y differ from each other?
- Give examples of the plants which show the said phenomenon.
