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A primary root grows from 5 cm to 19 cm ...

A primary root grows from 5 cm to 19 cm in a week. Calculate the absolute growth rate (AGR) and relative growth rate (RGR) over the period.

A

`{:(AGR,RGR),(14cm,2.8):}`

B

`{:(AGR,RGR),(14cm,3.8):}`

C

`{:(AGR,RGR),(3.8cm,14):}`

D

`{:(AGR,RGR),(24cm,2.8):}`

Text Solution

Verified by Experts

The correct Answer is:
A
`AGR = 19 - 5 = 14 cm`
`RGR = (14)/(5) = 2.8 cm`
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NCERT FINGERTIPS ENGLISH-PLANT GROWTH AND DEVELOPMENT-Plant Growth And Development
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  2. The given figure shows growth of two leaves over the period of one day...

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  3. A primary root grows from 5 cm to 19 cm in a week. Calculate the absol...

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  4. The factors which influence growth are

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

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

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

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

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  10. Examples of tissues that are formed by redifferentiation are

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

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

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

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

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  15. Intrinsic heterophylly is found in all except

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

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  17. Cytokinis are mostly

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

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

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