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The bending of the shoot of a plant in r...

The bending of the shoot of a plant in response to light is called:

A

geotropism

B

phototropism

C

thigmotropism

D

photonasty

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The correct Answer is:
B
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The bending of the root of a plant away from a source of light is caused by a plant hormone called:

The response of plant parts towards light is called

The process of growth of the plant in response to light is known as _______ .

Assertion (A): Phototropism is the process of growth of the plant in response to light. Reason (R): Auxins are involved in growth.

Fill in the following blanks: (a) A plant's response to light is called........ (b) A plant's response to gravity is called..... . (c) Plant shoot grows upward in response to....... (d) Plant roots grow downward in response to ....... (e) Tendrils wind around a support in response to ........ (f) Plant roots grow towards.... and in the direction of force of ........ (g) A root of a plant grows downward. This is knows as......... (h) ......is the hormone that causes phototropism in plants (i) The response of leaves to the sunlight is called ...............

The growth movement of a plant part in response to the touch of an object is called:

LAKHMIR SINGH & MANJIT KAUR-CONTROL AND COORDINATION -Exercise
  1. Which of the following terms denotes the movement of the root of a pla...

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  2. The growth of a pollen tube towards the ovule caused by a sugary subst...

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  3. The bending of the shoot of a plant in response to light is called:

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  4. The stimulus in the process of thigmotropism is:

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  5. A growing seedling is kept in a dark room. A burning candle is placed ...

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  6. Which of the following acts as a stimulus in the process of hydrotropi...

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  7. The growth movement of a plant part in response to the touch of an obj...

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  8. The climbing organs of plants like tendrils grow towards any suppory w...

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  9. The rate of growth in roots is decreased by one of the following plant...

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  10. When the leaves of a Mimosa pudica plant are touched with a finger, th...

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  11. Dandelion flowers open the petals in bright light during the daytime b...

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  12. To which of the following directional stimulus roots of a plant do not...

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  13. One of the following is not caused by the growth related movement of t...

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  14. The bending of the root of a plant away from a source of light is caus...

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  15. Most of the plant hormones promote plant growth. A plant hormone which...

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  16. The movement of a shoot towards light is:

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  17. The bending of the root of a plant away from a source of light is caus...

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  18. The plant part which exhibits negative geotropism is:

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  19. Which of the following are not tropisms? (i) growing of pollen tube...

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  20. The chemical substance P is made and secreted by the meristematic tiss...

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