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Most of the plant hormones promote plant...

Most of the plant hormones promote plant growth. A plant hormone which inhibits growth is:

A

abscisic acid

B

ethylene

C

ascorbic acid

D

cytokinin

Text Solution

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The correct Answer is:
A
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LAKHMIR SINGH & MANJIT KAUR-CONTROL AND COORDINATION -Exercise
  1. One of the following is not caused by the growth related movement of t...

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

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

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  4. The movement of a shoot towards light is:

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

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  6. The plant part which exhibits negative geotropism is:

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

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

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  9. A potted plant is growing in a transparent glass jar. In this plant, X...

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  10. There are three plants A,B and C. the flowers of plant A open their pe...

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  11. While conducting experiments to study the effect of various stimuli on...

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  12. P and Q are two types of plants having weak stems which cannot stand u...

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  13. The top part A of the flask-shaped reproductive organ X in the flower ...

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  14. P,Q,R and S are four major types of phytohormones. P is a phytohormone...

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  15. A potted plant having straight parts A and B was placed horizontally o...

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  16. When the leaves of a sensitive plant are touched with a finger, they f...

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  17. Name the two systems of control and coordination in higher animals.

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  18. What are the two parts of the vertebrate nervous system?

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  19. If we happen to touch a hot object unknowingly, we immediately pull ba...

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  20. Name the three components of a neuron (or nerve cell).

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