Home
Class 11
BIOLOGY
the given figure shows four coleoptiles ...

the given figure shows four coleoptiles set up at the start of an experiment

which two coleoptileswill bends towards the light source

A

3 and 4

B

2 and 3

C

1 and 4

D

1 and 2

Text Solution

Verified by Experts

The correct Answer is:
a
Promotional Banner

Topper's Solved these Questions

  • PHOTOSYNTHESIS IN HIGHER PLANTS

    ERRORLESS |Exercise Photosynthesis In Higher Plants|339 Videos
  • PLANT KINGDOM

    ERRORLESS |Exercise Plant Kingdom|553 Videos

Similar Questions

Explore conceptually related problems

Name the hormone which influence the tip of coleoptile and bend it towards light

The figure given below represents the set up at the start of certain experiment to demonstrate an activity of plants: What will be the observation in the two test tubes after about 2-3 days?

The figure given below represents the set up at the start of certain experiment to demonstrate an activity of plants: What is the aim of the experiment?

The figure given below represents the set up at the start of certain experiment to demonstrate an activity of plants: Why has oil been put in each test-tube?

The figure given below represents the set up at the start of certain experiment to demonstrate an activity of plants: Why has the test-tube B without the plant been taken in the experiment?

Darwin and Darwin discovered that Canary Grass coleoptile bends towards light only when

The given figure shows set up of potato osmoscope experiment. Select the option that correctly identifies the labels A,B and C

The given figure shows four p-V diagrams for the given sample of gas. In which case, no exchange of heat occurs with the sample?

The given figure shows a circuit with a cell connected to a bulb and a switch. When the switch is closed, the bulb lights up because the

ERRORLESS -PLANT GROWTH AND DEVELOPMENT-Plant Growth And Development
  1. Which one of the following pairs is incorrectly matched {:(,(a),"Adeni...

    Text Solution

    |

  2. The viability of seeds is tested by

    Text Solution

    |

  3. the given figure shows four coleoptiles set up at the start of an expe...

    Text Solution

    |

  4. Two blocks of Agare 1 and 2 were kept in the positions hown in the dia...

    Text Solution

    |

  5. One hormone hastens maturity period in juvenile conifers, a second hor...

    Text Solution

    |

  6. Which of the following enhances or induces fusion of protoplasts

    Text Solution

    |

  7. Seed domarncy can be broken by the following combination of chemicals

    Text Solution

    |

  8. Seedless fruits can be induced by

    Text Solution

    |

  9. Assertion : Gibberelins induce flowering in long day plants. Reason ...

    Text Solution

    |

  10. Assertion: Agent orange is a mixture of 2,4-D and 2,3,4-T , used durin...

    Text Solution

    |

  11. Assertion: Auxins promote apical dominance by suppressing the activeit...

    Text Solution

    |

  12. Assertion: "Touch" responses in Mimosa is an example of such movement....

    Text Solution

    |

  13. Assertion: Photomodulation of flowering is phytochrome-regulated proc...

    Text Solution

    |

  14. Assertion: Secondary roots and shoots are plagiogeotropic. Reason: P...

    Text Solution

    |

  15. Assertion: The apical bub is the only source of auxins Reason: Remov...

    Text Solution

    |

  16. Assertion: Cytokinin are antisenescent. Reason : Effects of cytokini...

    Text Solution

    |

  17. Assertion: Ethylene cause climacteric ripening of fruits. Reason : ...

    Text Solution

    |

  18. Assertion: Strtification of seeds may promote their germination. Rea...

    Text Solution

    |

  19. Assertion: Sigmoid growth curve consists of four parts. Reason : La...

    Text Solution

    |

  20. Assertion: Dark period play more important part in flowering than ligh...

    Text Solution

    |