Home
Class 11
BIOLOGY
A primary root grows from 5 cm to 19 cm ...

A primary root grows from 5 cm to 19 cm in a weak. Calculate the actual 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`
Promotional Banner

Topper's Solved these Questions

  • PHOTOSYNTHESIS IN HIGHER PLANTS

    NCERT FINGERTIPS|Exercise Photosynthesis In Higher Plants|136 Videos
  • PLANT KINGDOM

    NCERT FINGERTIPS|Exercise Plant Kingdom|160 Videos

Similar Questions

Explore conceptually related problems

Which formula is used to calculate the relative growth rate of plants?

Choose the correct statements from the following by considering two leaves A and B whose initial sizes are 5 cm^2 and 50 cm^2 respectively and after a period of time their sizes are 10 cm^2 and 55 cm^2 respectively (A) Their absolute growth rates are equal. (B) The absolute growth rate of A is more. (C) The relative growth rate of A is more. (D) The relative growth rate of B is more.

The given figure shows growth of two leaves over the period of one day. If AG = absolute growth and RGR= relative growth rate, then select the correct option.

A leaf having 10cm^(2) surface area grows 5cm^(2) per day. Calculate its relative growth rate

NCERT FINGERTIPS-PLANT GROWTH AND DEVELOPMENT-Plant Growth And Development
  1. Read the given statements and select the correct option. (i) One mar...

    Text Solution

    |

  2. The given figure shows growth of two leaves over the period of one day...

    Text Solution

    |

  3. A primary root grows from 5 cm to 19 cm in a weak. Calculate the actua...

    Text Solution

    |

  4. The factors which influence growth are

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  10. Examples of tissues that are formed by redifferentiation are

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  15. Intrinsic heterophylly is found in all except

    Text Solution

    |

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

    Text Solution

    |

  17. Cytokinin are mostly

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |