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प्रश्न
The shoot system grows upward in response to ______.
उत्तर
The shoot system grows upward in response to negative geotropism.
APPEARS IN
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 Growing of roots towards the earth.
Which of the following is a growth movement and which is not?
- Folding up of leaves of sensitive plant on touching with hand.
- Folding up of petals of dandelion flower when light fades.
To which directional stimuli do roots respond?
Fill in the following blank :
...... is the hormone that causes phototropism in plants
What is the difference between thigmotropism and thigmonasty? Name one plant which exhibits thigmotropism and one plant which exhibits thigmonasty. What behaviour (or responses) of these plants make you think that they exhibit thigmotropism and thigmonasty respectively?
The movement of a plant part in response to the force of attraction exerted by the earth is called :
(a) hydrotropism
(b) geotropism
(c) chemotropism
(d) phototropism
While conducting experiments to study the effect of various stimuli on the plants, it was observed that the roots of a plant X grow and bend towards two stimuli A and B but bend away from a third stimulus C. The stem of the plant X, however, bends away from stimuli A and B but bends towards the stimulus C. The stimulus B is known to act on the roots due to too much weight of the earth. Keeping these points in mind, answer the following question:
- What could stimulus A be?
- Name the stimulus B.
- What could stimulus C be?
- The branches of a fallen tree in a forest grow straight up in response to two stimuli. What could be these two stimuli out of A, B and C? Also name these two stimuli.
What is chlorophyll?
Which parts of a plant exhibit Positive hydrotropism?
