Home
Class 10
BIOLOGY
The root of a plant is: (i) positivel...

The root of a plant is:
(i) positively phototropic but negatively geotropic
(ii) positively geotropic but negatively phototropic
(iii) negatively phototropic but positively hydrotropic
(iv) negatively hydrotropic but positively phototropic

A

(i) and (ii)

B

(ii) and (iii)

C

(iii) and (iv)

D

(i) and (iv)

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • CONTROL AND COORDINATION

    LAKHMIR SINGH & MANJIT KAUR|Exercise Very Short Answer Type Questions|5 Videos
  • CONTROL AND COORDINATION

    LAKHMIR SINGH & MANJIT KAUR|Exercise Very Short Answer Type Questions|5 Videos
  • HEREDITY AND EVOLUTION

    LAKHMIR SINGH & MANJIT KAUR|Exercise Multiple Choice Question|1 Videos

Similar Questions

Explore conceptually related problems

Most roots are positively geotropic The negatiely

describe following parts : (i) positively phototropic and (ii) negatively geotropic.

Negative phototropism occurs in

Primary root is : 1. Positively geotropic 2. Positively hydrotropic 3. Negatively geotropic 4. Negatively hydrotropic Code:

Exampe of positive geotropism is

Give one example each of a plant part: (a) which is positively hydrotropic as well as positively geotropic (b) which is positively phototropic but negatively geotropic.

Why is root said to be positively geotropic ?

LAKHMIR SINGH & MANJIT KAUR-CONTROL AND COORDINATION -Exercise
  1. A big tree falls in a forest but its roots are still in contact with t...

    Text Solution

    |

  2. Which of the following is not caused by a growth movement?

    Text Solution

    |

  3. The root of a plant is: (i) positively phototropic but negatively g...

    Text Solution

    |

  4. The main function of the plant hormone called abscisic acid is to:

    Text Solution

    |

  5. The growth of tendrils in pea plants is due to the:

    Text Solution

    |

  6. Which of the following phytohormone is not associated with the promoti...

    Text Solution

    |

  7. The plant hormone which triggers the fall of mature leaves and fruits ...

    Text Solution

    |

  8. Which of the following terms denotes the movement of the root of a pla...

    Text Solution

    |

  9. The growth of a pollen tube towards the ovule caused by a sugary subst...

    Text Solution

    |

  10. The bending of the shoot of a plant in response to light is called:

    Text Solution

    |

  11. The stimulus in the process of thigmotropism is:

    Text Solution

    |

  12. A growing seedling is kept in a dark room. A burning candle is placed ...

    Text Solution

    |

  13. Which of the following acts as a stimulus in the process of hydrotropi...

    Text Solution

    |

  14. The growth movement of a plant part in response to the touch of an obj...

    Text Solution

    |

  15. The climbing organs of plants like tendrils grow towards any suppory w...

    Text Solution

    |

  16. The rate of growth in roots is decreased by one of the following plant...

    Text Solution

    |

  17. When the leaves of a Mimosa pudica plant are touched with a finger, th...

    Text Solution

    |

  18. Dandelion flowers open the petals in bright light during the daytime b...

    Text Solution

    |

  19. To which of the following directional stimulus roots of a plant do not...

    Text Solution

    |

  20. One of the following is not caused by the growth related movement of t...

    Text Solution

    |