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A potted plant is kept horizontally for ...

A potted plant is kept horizontally for a considerable time. The three positions of the parts A and B of the potted plant are shown in the following figures:

(a) Which figure shows the correct position taken by the parts A and B of the plant?
(b) What type of phenomenon is exhibited by the figure chosen in (a) above?

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The correct Answer is:
(a) Figure (ii) (b) Geotropism
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LAKHMIR SINGH & MANJIT KAUR-CONTROL AND COORDINATION -Exercise
  1. Distinguish between tropic movements and nastic movements in plants. G...

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  2. (a) What is meant by nastic movement in plants? Give one example of na...

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  3. A potted plant is kept horizontally for a considerable time. The three...

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  4. Name of the plant hormones which are responsible for the following eff...

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  5. Name the plant organs which are:

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  6. Why is the folding up of the leaves of a sensitive plant on touching w...

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  7. Why is the closing of a Dandelion flower at dusk (when it gets dark) n...

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  8. (a) What is meant by 'tropisms' (or tropic movements)? Explain with an...

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  9. (a) Define phototropism. Give one example of phototropism. (b) How d...

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  10. (a) Define geotropism. Give one example of geotropism. (b) What is m...

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  11. (a) How does control and coordination take place in plants? How does i...

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  12. (a) What is meant by positive tropism and negative tropism? Explain wi...

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  13. Which of the following is not a plant hormone?

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  14. One of the following plant hormones is responsible for the phenomenon ...

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  15. The movement of a plant part in response to the force of attraction ex...

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  16. The movement of sunflower in accordance with the path of the sun is du...

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  17. The plant part which exhibits negative geotropism is:

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  18. A big tree falls in a forest but its roots are still in contact with t...

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  19. Which of the following is not caused by a growth movement?

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  20. The root of a plant is: (i) positively phototropic but negatively g...

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