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प्रश्न
The plant part which exhibits negative geotropism is :
(a) root
(b) stem
(c) branch
(d) leaves
उत्तर
(b) stem
Plant stem grows upward opposite to the force of gravity. Hence, it exhibits negative geotropism.
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संबंधित प्रश्न
Name the plant organ which is positively geotropic
What are the different types of tropisms? Define each type of tropism. Write the name of stimulus in each case
Define geotropism.
The plant part which exhibits negative geotropism is ______.
Assertion (A): If the plant part moves in the direction of gravity, it is called positive geotropism.
Reason (R): Stem shows positive geotropism.
Write the scientific terms used to represent the following:
Bending of roots towards the water.
Which flowering plant shows a photo nasty just opposite to that of a Dandelion?
Observe the three figures given below. Which of the following depicts tropic movements appropriately?
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 |
 |
| A | B | C |
Some plants like pea plants have tendrils which help them to climb up other plants. Explain how is it done. Name the plant hormone responsible for this movement.
Give one example of geotropism.
