Home
Class 12
BIOLOGY
Assertion :- Sieve tube element and comp...

Assertion :- Sieve tube element and companion cell are called sister cells.
Reason :- Sieve tube element and companion cells arise from same mother cells.

A

If both Assertion & Reason are True & Reason is a correct explanation of the Assertion.

B

If both Assertion & Reason are True but the Reason is a correct explanation of the Assertion.

C

If Assertion is True but the Reason is False.

D

If both Assertion & Reason are false.

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • STRUCTURAL ORGANISATION IN PLANTS (MOPRHOLOGY OF FLOWERING PLANTS & ANATOMY OF FLOWERING PLANTS)

    ALLEN|Exercise Beginner Box-1|4 Videos

  • STRUCTURAL ORGANISATION IN PLANTS (MOPRHOLOGY OF FLOWERING PLANTS & ANATOMY OF FLOWERING PLANTS)

    ALLEN|Exercise Beginner Box-2|5 Videos

  • STRUCTURAL ORGANISATION IN PLANTS (MOPRHOLOGY OF FLOWERING PLANTS & ANATOMY OF FLOWERING PLANTS)

    ALLEN|Exercise Exercise-III (A) [NCERT Based Questions]|55 Videos

  • STRATEGIES FOR ENHANCEMENT IN FOOD PRODUCTION & ANIMAL HUSBANDRY

    ALLEN|Exercise Question|47 Videos

  • STRUCTURAL ORGANISATION OF ANIMALS (ANIMALTISSUE)

    ALLEN|Exercise S|32 Videos

Similar Questions

Explore conceptually related problems

Companion cells are

Companion cells are

Companion cells are

Sieve tubes and companion cells are absent in

Function of companion cells is

Function of companion cells is

Function of companion cells is

Vessels and Companion cells are characteristics of

Companion cells are present alongside the

The sieve tubes and companion cells are exceptional features of

ALLEN-STRUCTURAL ORGANISATION IN PLANTS (MOPRHOLOGY OF FLOWERING PLANTS & ANATOMY OF FLOWERING PLANTS)-Exercise-IV (Assertion & Reason)
  1. Assertion :- Pericycle of monocot roots show dual functioning. Reaso...

    Text Solution

    |

  2. Assertion :- Both vascular cambium and cork cambium are lateral merist...

    Text Solution

    |

  3. Assertion :- Vascular cambium of dicot stem shows dual origin. Reaso...

    Text Solution

    |

  4. Differentiate between Fascicular cambium and interfascicular cambium

    Text Solution

    |

  5. Assertion :- Old woody plant parts are devoid of primary phloem. Rea...

    Text Solution

    |

  6. Assertion :- Vascular cambium activity is not uniform throughout the y...

    Text Solution

    |

  7. Assertion: In dicot stem, endodermis is also called as starch sheath. ...

    Text Solution

    |

  8. Assertion :- Cork cambium activity is responsible for slough off perip...

    Text Solution

    |

  9. Assertion :- Removal of bark in the form of ring from tree leads to d...

    Text Solution

    |

  10. Assertion :- In roots cork cambium is of secondary origin. Reason :...

    Text Solution

    |

  11. Assertion :- Vascular tissue are complex tissues. Reason :- Xylem ...

    Text Solution

    |

  12. Passage cells are found in

    Text Solution

    |

  13. Assertion :- Most distinct annual rings are formed in tropical regions...

    Text Solution

    |

  14. Assertion :- Vessels are example of syncyte . Reason : Vessels are ...

    Text Solution

    |

  15. In a hollow hearted stem, what is most affected

    Text Solution

    |

  16. Assertion :- Sieve tube element and companion cell are called sister c...

    Text Solution

    |

  17. Assertion :- In Zea mays roots, xylem is exarch. Reason :- The prot...

    Text Solution

    |

  18. Phellem becomes impervious to water due to deposition of

    Text Solution

    |

  19. Assertion :- In angiosperms transport of food and water are more effi...

    Text Solution

    |

  20. Assertion :- Plant dies up after removing the bark. Reason: By the r...

    Text Solution

    |