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To which directional stimuli do: (a) r...

To which directional stimuli do:
(a) roots respond?
(b) shoots respons?

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The correct Answer is:
(a) Light, Gravity and Water (b) Light and Gravity
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LAKHMIR SINGH & MANJIT KAUR-CONTROL AND COORDINATION -Exercise
  1. Which of the following is a growth movement and which is not? (a) fo...

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  2. Name the plant part: (a) which bends in the direction of gravity but...

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  3. To which directional stimuli do: (a) roots respond? (b) shoots re...

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  4. Fill in the following blanks: (a) A plant's response to light is cal...

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  5. Plant parts show two types of movements, one dependent on growth and t...

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  6. What is a plant hormone? Name four plant hormones. State one function ...

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  7. (a) What does a root do in response to gravity? What is the phenomenon...

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  8. (a) What does a stem (or shoot) do in response to gravity? What is thi...

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  9. (a) What does a Mimosa pudica plant do in response to touch? What is t...

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  10. (a) What does a plant root do in response to water? What is this pheno...

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  11. What is a tendril? Name the two types of tendrils. What does a tendri...

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  12. Name the five types of tropisms. How are tropic movements helpful to p...

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  13. Define chemotropism. Give one example of chemotropism. State whether t...

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  14. Distinguish between tropic movements and nastic movements in plants. G...

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

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

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

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  18. Name the plant organs which are:

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

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

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