Home
Class 12
BIOLOGY
[A]: In certain plants the stem that twi...

[A]: In certain plants the stem that twins around the support is hard and woody, such plants are called psammophytes.
[R]: The hygroscopic roots have a spongy tissue called exodermis

A

If both A and R are true and R is the correct explanation of A

B

If both A and R are true but R is not the correct explanation of A

C

If A is true and R is false

D

If both A and R are false

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • PLANT KINGDOM

    TRUEMAN BIOLOGY|Exercise MULTIPLE CHOICE QUESTION|252 Videos

  • Plant Physiology

    TRUEMAN BIOLOGY|Exercise ASSERTION AND REASON|91 Videos

Similar Questions

Explore conceptually related problems

A parasite that lives within a plant tissue is called as

Plants having similar genotypes produced by plant breeding are called

In grafting the plant rooted in the soil is called ______

The plants that send their roots upto fringe of the water table due to the deficiency of air are called

[A]: Plants hormones are called phytohor- mones [R]: They increase rate of reaction & acceler- ate growth.

Plant piece used in tissue culture is called

Plant piece used in tissue culture is called

The symbotic association of fungi with the roots of higher plants is called

Roots developed from parts of the plant other than radicle are called

Roots developed from parts of the plant other than radicle are called

TRUEMAN BIOLOGY-Plant Morphology & Reproduction -ASSERTION AND REASON
  1. [A]: The two sperms cells in a pollen tube often change their shape. ...

    Text Solution

    |

  2. [A] : Synandrous condition is found in curcurbits. [R] : The male fl...

    Text Solution

    |

  3. [A]: In certain plants the stem that twins around the support is hard ...

    Text Solution

    |

  4. [A]: Leaf in Daucus carota is decompound. [R]: Saprophytic and paras...

    Text Solution

    |

  5. [A]: The colour of flowers in Bougainvillia is due to the coloured bra...

    Text Solution

    |

  6. [A]: The endosperm contains the triploid number of chromosomes. [R]:...

    Text Solution

    |

  7. [A]: Spore mother cells within the anther pollen sacs form four haploi...

    Text Solution

    |

  8. [A]: One diploid embryo sac mother cell develops within the nucellus o...

    Text Solution

    |

  9. [A]: Triple fusion results in veg~tative fertiliza- tion of angiosperm...

    Text Solution

    |

  10. [A]: Pollination is essential for fertilization. [R]: Abscission or...

    Text Solution

    |

  11. [A]: The biennial plants live for two years. [R]: They flower in bo...

    Text Solution

    |

  12. Assertion (A): Many visitors to the hills suffer from skin and respira...

    Text Solution

    |

  13. [A]: Endosperm is tripolid in angiosperms. [R]: In gymnosperms, it ...

    Text Solution

    |

  14. Assertion. A pollen grain of angiosperm is considered as the male game...

    Text Solution

    |

  15. Assertion. In apomixis , plants of new genetic sequence are produced. ...

    Text Solution

    |

  16. Assertion : In collateral vascular bundles phloem is situated toward ...

    Text Solution

    |

  17. [A]: The secondary pholem consititutes a less poriment part of the tre...

    Text Solution

    |

  18. [A] : The narrow band of meristemetic tissue present between pholem an...

    Text Solution

    |

  19. [A]: The inner most distinict layer of the cortex is called endomermi...

    Text Solution

    |

  20. [A]: Gramineous type of stomata are found in Gramineae and Cyperaceae....

    Text Solution

    |