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The factors which influence growth are...

The factors which influence growth are

A

nutrients

B

water, oxygen

C

light, temperature

D

all of these

Text Solution

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The correct Answer is:
D
Growth involves syntheis of more protoplasm, cell division, cell enlargement and cell differentiation. It is, therefore, influenced by all those factors which influence, biosynthetic machinery such as availability of water, oxygen, optimum temperature optimum light, minerals, gravity etc.
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NCERT FINGERTIPS-PLANT GROWTH AND DEVELOPMENT-Plant Growth And Development
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  2. A primary root grows from 5 cm to 19 cm in a weak. Calculate the actua...

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  3. The factors which influence growth are

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  4. Cells of tracheary elements (tracheids and vessels) become dead at mat...

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  5. Which of the following is an example of differentiation ?

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  6. Living differentiated cells which have otherwise lost the capacity to ...

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  7. The dedifferentiated cells mature to form some specific cells to perfo...

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  8. are the examples of tissues, formed by dedifferentiation.

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  9. Examples of tissues that are formed by redifferentiation are

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  10. If a part of pith from the stem of a plant is used as an explant and c...

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  11. includes all the changes that an organism undergoes during its life cy...

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  12. Different kinds of structures develop in plants in different phase of ...

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  13. In aquatic plant Ranunculus flabellair (buttercup), submerged leaves a...

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  14. Intrinsic heterophylly is found in all except

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  15. Development in plants is influenced by both intrinsic and extrinsic fa...

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  16. Cytokinin are mostly

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  17. Select the pair that consists of plant growth promoters only.

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  18. Which of the following is both a growth promoter as well as a growth ...

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  19. Functions of plant growth promoters and plant growth inhibitros are gi...

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  20. Hormone involved in phototropism is

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