Home
Class 11
BIOLOGY
Cut pieces of beetroot do not leave the ...

Cut pieces of beetroot do not leave the colour in cold water but do so in hot water. Explain.

Text Solution

Verified by Experts

In cold water, cell membranes being living are semipermeable and do not permit leakage of antocyanin pigment found in cell vacuoles. In hot water, cell membrane gets killed and becomes permeable and permits leaking out of colour.
Promotional Banner

Topper's Solved these Questions

  • TRANSPORT IN PLANTS

    MODERN PUBLICATION|Exercise NCERT EXEMPLAR PROBLEMS (LONG ANSWER TYPE QUESTIONS)|6 Videos

  • TRANSPORT IN PLANTS

    MODERN PUBLICATION|Exercise HIGHER ORDER THINKING SKILLS & BARIN TWISTING (VERY SHORT ANSWER TYPE QUESTIONS)|10 Videos

  • TRANSPORT IN PLANTS

    MODERN PUBLICATION|Exercise NCERT EXEMPLAR PROBLEMS (VERY SHORT ANSWER TYPE QUESTIONS)|23 Videos

  • THE LIVING WORLD

    MODERN PUBLICATION|Exercise Chapter Practice Test|16 Videos

Similar Questions

Explore conceptually related problems

Assertion : Purple cabbage leaves do not lose their colour in cold water but do so in boiling water. Reason : Plasma membrane becomes impermeable in boiling water and pigments come out.

Purple cabbage leaves do not loose their colour in cold water but do so in boiling water because

Oil spreads on cold water but remains as drop on hot water.

The surface tension of cold water is that of hot water

The terms hot and cold are used in relative context. Explain.

MODERN PUBLICATION-TRANSPORT IN PLANTS-NCERT EXEMPLAR PROBLEMS(SHORT ANSWER TYPE QUESTIONS)
  1. Water is indispensable for life. What properties of water make it usef...

    Text Solution

    |

  2. How is it that the intracellular level of K^(+) are higher than extrac...

    Text Solution

    |

  3. Cut pieces of beetroot do not leave the colour in cold water but do so...

    Text Solution

    |

  4. In a girdled plant, when water is supplied to the leaves above the gir...

    Text Solution

    |

  5. Various types of transport mechanisms are needed to fulfil the mineral...

    Text Solution

    |

  6. How can plants be grown limited water supply without compromising on m...

    Text Solution

    |

  7. Will the ascent of sap be possible without the cohesion and adhesion o...

    Text Solution

    |

  8. Keep some freshly cut flowers in a solution of food colour. Wait for s...

    Text Solution

    |

  9. When a freshly collected Spirogyra filament is kept in a 10 % potassiu...

    Text Solution

    |

  10. Sugar crystals do not dissolve easily in ice cold water. Explain.

    Text Solution

    |

  11. Salt is applied to tennis lawns to kill weeds. How does salting tennis...

    Text Solution

    |

  12. What is the chemical composition of of xylem and phloem sap ?

    Text Solution

    |

  13. If you are provided with two tubes (A and B), where one is narrow and ...

    Text Solution

    |

  14. What are 'aquaporins' ? How does presence of aquaporins affect osmosis...

    Text Solution

    |

  15. ABA (Abscisic Acid) is called a stress hormone. A. How this hormone ...

    Text Solution

    |

  16. We know that plants are harmed by excess water. But plants survive und...

    Text Solution

    |

  17. Differentiate between diffusion and translocation in plants.

    Text Solution

    |

  18. How is fcilitated diffusion different from diffusion ?

    Text Solution

    |

  19. Explain the mass flow hypothesis of transport in phloem

    Text Solution

    |

  20. Observe the diagram and answer the following: (a) Are these types of g...

    Text Solution

    |