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प्रश्न
A potted plant having straight parts A and B was placed horizontally on its side as shown in Figure (i). After a few days, it was observed that parts A and B of the plant acquired new positions as shown in Figure (ii).
- Name the phenomenon exhibited by the position of plant parts A and B in Figure (ii).
- Name the stimulus (other than sunlight) which causes plant part A to grow and bend upwards, and plant part B to bend downwards.
उत्तर
- The phenomenon exhibited by the positions of plant parts A and B is geotropism.
- The stimulus which causes plant part A to grow and bend upwards and part B to bend downwards is gravity.
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संबंधित प्रश्न
Give the scientific terms used to represent the Growth of a pollen tube towards ovule.
Name the plant organ which is negatively geotropic.
Why is the closing of a dandelion flower at dusk (when it gets dark) not a tropism?
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.
Differentiate between:
Thigmotropism and geotropism
The tropic movement that helps the climbing vines to find a suitable support is ______.
The response of a plant part towards gravity is ______.
Roots of plants are:
What does a Mimosapudica plant do in response to touch? What is the phenomenon known as?
Define the following term:
Tropism
