Home
Class 11
BIOLOGY
Read the following statements regarding ...

Read the following statements regarding arithmetic growth and select the correct answer.
(i) Rate of growth is constant.
(ii) One daughter cell remains meristematic while the other one differentiates and matures.
(iii) Mathematical expression is `L_(t) = L_(0) +rt`.

A

statements (i) and (ii) are correct.

B

statements (ii) and (iii) are correct

C

statements (i) and (iii) are correct

D

All statements are correct

Text Solution

Verified by Experts

The correct Answer is:
D

Increase in growth per unit time is called as growth rate. The growth rate may be arithmetic or gemoetrical. Arithmetic Growth is a type of growth in which the rate of growth is constant and increase in growth occurs in arithmetic progression -2,4,6,8,10,12. Meristematic cells at the growing point divide in such a fashion that one daugther cell remains meristematic while the other grows and differentiates. the process continues. Mathematically, arithmetic growth is expressed as
`L_(t) = L_(0) + rt`
where `L_(t) =` length after time `t,L_(0) =` length ath the begining, and `r=` growth rate. on plotting growth aganist time, a linear curve is obtained.
Promotional Banner

Topper's Solved these Questions

  • PLANT GROWTH AND DEVELOPMENT

    NCERT FINGERTIPS ENGLISH|Exercise Plant growth regulators|70 Videos
  • PLANT GROWTH AND DEVELOPMENT

    NCERT FINGERTIPS ENGLISH|Exercise Photoperiosim|8 Videos
  • PHOTOSYNTHESIS IN HIGHER PLANTS

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

    NCERT FINGERTIPS ENGLISH|Exercise Plant Kingdom|160 Videos

Similar Questions

Explore conceptually related problems

Read the followig statements regarding meristematic cells and select the correct ones. (i). Cells possess the ability to grow and divide. (ii). Cells have dense cytoplasm with prominent nucleus. (iii). Well developed ER and mitochondria are present

Read the following statements regarding methanogens and select the correct option. (i) They are included in the group Archaebacteria. (ii) They are responsible for the production of biogas in gobar gas plants. (iii) They live in hot sulphur springs. (iv) They are strictly anaerobic.

Read the following statement regarding bryophytes and select the correct answer. (i). Bryophytes lack true roots, stem and leaves. (ii). The main plant body is haploid (iii). Sex-organs are unicellular and non-jacketed (iv). Fertilisation produces an embryo inside the water.

Read the following statements regarding euglenoids and select the incorrect ones. (i) These are mostly freshwater organisms found in stagnant water. (ii) Their body is covered by a protein rich layer called pellicle which makes their body flexible. (iii) They are photosynthetic in the presence of sunlight but become heterotrophs in the absence of sunlight. (iv) They usually prosses tow flagella, one long and one short. (v) Euglenoids are multicellular ciliate protists

Go through the following statements (i) In geometr,ic growth, following mitotic cell division, only one daughter cell con- tinues to divide while the other differen- tiates and mature. (ii) The ability of plants to follow different pathways in response to environment or phases of life to to.rm different kinds of structures, is called plasticity. (iii) The mathematical expression for arith- metic growth is Lt = L_0 + rt while for geo- metric growth, it is W_1=W_0=W_(0)e^(rt) (iv) The form of growth wherein new cells are always being added to the plant body by the activity of the meristem, is called the open form of growth. Which of these are correct .

Fill in the blanks 1. . In ....a.... growth, both the progeny cells following 19 mitotic cell division retain the ability to divide and continue to do so. 2.In ......b growth, following mitotic cell division, only one daughter cell continues to divide while the other differentiates and matures. 3.Arithmetlc growth is mathemancally expressed as ….c... 4.The exponential growth can be expressed as….d…

Read the following statement regarding meristematic cells and select the CORRECT ones (i) shoot apical meristem occupies the distant most region of the stem axis. (ii) The meristem which occurs between mature tissues is known as intercalary meristem. (iii) Both apical meristems and intercalary meristems are secondary meristems.

Read the following statements and select the correct ones. (i). Phloem parenchyma is absent in most monocots. (ii). Gymnosperms lack tracheids and vessel. (iii). Gymnosperms lack companion cells.

Study the following statements regarding mitochondria and select the correct ones. These are the sites of aerobic respiration. (ii) Matrix contains single, circular ds DNA molecule, a few RNA molecules, 70S ribosomes. (iii) Mitochondria divide by fission. (iv) Mitrochondria are fully-autonomous.

Study the following statements regarding inbreeding and select the incorrect ones. (i) The inbreeding strategies allow the desirable qualities of two different breeds to be combined. (ii) It increases homozygosity. (iii) It also helps in elimination of less desirable genes. (iv) Continued inbreeding increases fertility and productivity.

NCERT FINGERTIPS ENGLISH-PLANT GROWTH AND DEVELOPMENT-Plant Growth And Development
  1. Growth is maximum in zone of

    Text Solution

    |

  2. Fastest phase of S-shaped growth curve is

    Text Solution

    |

  3. Read the following statements regarding arithmetic growth and select t...

    Text Solution

    |

  4. Which one is the correct graph for arithmetic growth?

    Text Solution

    |

  5. Select the incorrect statement among the following.

    Text Solution

    |

  6. The given figure shows development of an embryo that undergoes two pha...

    Text Solution

    |

  7. The exponential growth can be mathematically expressed as

    Text Solution

    |

  8. Given graph is drawn on the parameters of growth versus time. Here A,B...

    Text Solution

    |

  9. Read the given statements and select the correct option. (i) One mar...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  12. The factors which influence growth are

    Text Solution

    |

  13. Cells of tracheary elements (trcheids and vessels) become dead at matu...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  18. Examples of tissues that are formed by redifferentiation are

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |