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Which plant hormone makes a stem (or sho...

Which plant hormone makes a stem (or shoot) bend towards light?

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The correct Answer is:
Auxin
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(a) Name the hormone which is secreted when growing plants detect light. Mention its site of secretion in a plant. (b) Explain why do plants appear to bend towards light?

LAKHMIR SINGH & MANJIT KAUR-CONTROL AND COORDINATION -Exercise
  1. What is the general name of chemical substances which bring about cont...

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  2. Which plant hormone is responsible for the wilting and falling of leav...

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  3. Which plant hormone makes a stem (or shoot) bend towards light?

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  4. Where is the auxin hormone made in a plant stem?

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  5. What is the scientific name of sensitive plant?

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  6. Name one plant hormone that promotes growth and another plant hormone ...

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  7. Name one example of the movement of a plant part which is very quick a...

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  8. Name the type of chemical substances that control the growth in plants...

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  9. What is the stimulus in: (a) phototropism? (b) geotropism? (c) chemotr...

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  10. Give the scientific terms used to represent the following: (a) Bendi...

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  11. Give one example of the movement of a plant part which is caused by th...

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  12. Give one example each of a plant part: (a) which is positively hydro...

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  13. Which of the following is a growth movement and which is not? (a) fo...

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

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

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

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

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

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

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

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