Home
Class 11
BIOLOGY
Assertion : When a pot containing a plan...

Assertion : When a pot containing a plant is put in an inverted position for a long time, roots move downwards and stem upwards.
Reason: This is due to negative geotropism of root and positive geotropism of stem.

A

If both Assertion and Reason are true and the Reason is a correct explanation of the Assertion.

B

If both Assertion and Reason are true but the Reason is not a correct explanation of the Assertion.

C

If Assertion is true but the Reason is false.

D

If both Assertion and Reason are false.

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • PLANT GROWTH AND DEVELOPMENT

    MODERN PUBLICATION|Exercise COMPETITION FILE ( OBJECTIVE TYPE QUESTIONS (E. ANALOGY TYPE QUESTIONS :))|14 Videos
  • PLANT GROWTH AND DEVELOPMENT

    MODERN PUBLICATION|Exercise COMPETITION FILE ( OBJECTIVE TYPE QUESTIONS (F. REASONING TYPE QUESTIONS:))|1 Videos
  • PLANT GROWTH AND DEVELOPMENT

    MODERN PUBLICATION|Exercise COMPETITION FILE ( OBJECTIVE TYPE QUESTIONS (C. MATCHING TYPE QUESTIONS:))|1 Videos
  • PHOTOSYNTHESIS IN HIGHER PLANTS

    MODERN PUBLICATION|Exercise CHAPTER PRACTICE TEST|9 Videos
  • PLANT KINGDOM

    MODERN PUBLICATION|Exercise Chapter Practice Test|16 Videos

Similar Questions

Explore conceptually related problems

Why is root said to be positively geotropic ?

Positive geotropic response of root is

Most roots are positively geotropic The negatiely

Assertion : Plants bend towards the light. Reason: This is due to unequal distribution of auxins on illuminated and darker side of stem.

A plotted plant is growing in a transparent glass jar. In this plant, X and Y are the two growing parts having a lot of meristematic tissue. It is observed that the part X of this plant exhibits positive geotropism but negative phototropism. On the other hand, part Y of this plant exhibits negative geotropism but positive phototropism. (a) Name the part X of plant. (b) Name the part Y of plant. (c) Which part of the plant, X or Y, will exhibit positive hydrotropism? (d) Which part of the plant, X or Y, can have tendrils on it? (e) Which phytochormone causes the part X to exhibit negative phototropism?

What is getropism ? Draw a labelled diagram of a potted plant showing positive geotropism and negative geotropism .

Assertion :- The main plant of angiosperm is in the form of sporophyte. Reason :- Sporophyte is not differentiated into root, stem and leaves

(a) Define geotropism. Give one example of geotropism. (b) What is meant by 'positive geotropism' and negative geotropism? Give one example of each type. Draw a labelled diagram to illustrate your answer indicating the plant part which shows positive geotropism and the plant part which shown negative geotropism. (c) Name one plant part which exhibits positive thigmotropism.

Assertion: The stem in harbaceous plants do not develop cracks during severe wind and use to bond under these conditions. Reason: Sclerenchyma is peripheral in position and provides flixibility to herbaceous stem.

MODERN PUBLICATION-PLANT GROWTH AND DEVELOPMENT-COMPETITION FILE ( OBJECTIVE TYPE QUESTIONS (D. ASSERTION TYPE QUESTIONS :))
  1. Assertion : Living beings show growth. Reason: It is due to metaboli...

    Text Solution

    |

  2. Assertion : Maintenance of ratio between growth rates of different par...

    Text Solution

    |

  3. Assertion : Mobilisation of stored food in germinating seeds is trigge...

    Text Solution

    |

  4. Assertion: The respiratory activity in cell maturation phase as compar...

    Text Solution

    |

  5. Assertion : Parthenogenetic fruits are prepared by spraying abscisic a...

    Text Solution

    |

  6. Assertion : Gibberellin was first extracted from fungi. Reason: Gibb...

    Text Solution

    |

  7. Assertion : Cytokinins lead to retention of chlorophyll and delay the ...

    Text Solution

    |

  8. Assertion : Seeds require water for germination. Reason: Water is t...

    Text Solution

    |

  9. Assertion : In plants during water stress and drought conditions, ABA ...

    Text Solution

    |

  10. Assertion: When terminal bud is removed, lateral branches sprout out. ...

    Text Solution

    |

  11. Assertion : Crescograph was invented by Sir J.C. Bose. Reason: Cres...

    Text Solution

    |

  12. Assertion : When a pot containing a plant is put in an inverted positi...

    Text Solution

    |

  13. Assertion: The movements of roots in relation to water is termed as hy...

    Text Solution

    |

  14. Assertion : Plant movements induced by external stimuli are known as a...

    Text Solution

    |

  15. Assertion : In fruits and leaves, abscission zone is formed at the poi...

    Text Solution

    |

  16. Assertion : Plants bend towards the light. Reason: This is due to u...

    Text Solution

    |

  17. Assertion. Plants also have hormones called phyto-hormones. Reason. ...

    Text Solution

    |

  18. Assertion . Senescence is the time when age associated defects are man...

    Text Solution

    |