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Absorption by R...

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  • Question 1
    1 / -0

    Identify the parts A, B, C and D of a root hair.

  • Question 2
    1 / -0

    Match the following:

    (a) Ascent of sap        (i) Water sticks to the surface of the cells
    (b) Guttation     (ii) Loss of water from the surface of the leaf
    (c) Transpiration pull    (iii) Movement of water from roots to leaves
    (d) Adhesion   (iv) Loss of water in the form of water droplets
     

  • Question 3
    1 / -0

    Which of the following phenomena is not involved in the absorption and conduction of water and minerals?

  • Question 4
    1 / -0

    The ability of roots to draw water from the soil is dependent on
    (i) surface area of roots
    (ii) thin walls of root hair
    (iii) cell sap of root hair

  • Question 5
    1 / -0

    Which of the following processes keeps the plant cool?

  • Question 6
    1 / -0

    Swelling of raisins, when placed in a beaker of water, demonstrates the phenomenon of 

  • Question 7
    1 / -0

    Mineral nutrients, which are required by the plants, are absorbed by ____________.

  • Question 8
    1 / -0

    Which of the following is not an importance of turgidity to plants?

  • Question 9
    1 / -0

    The pressure of the cell contents on cell wall is called ______ and the pressure exerted by the cell wall on the cell content is called _______

  • Question 10
    1 / -0

    Which of the following forces is not responsible for ascent of sap?

  • Question 11
    1 / -0

    The upward movement of water in a plant towards the stem and leaves is called________

  • Question 12
    1 / -0

    Match the following:

    Column I Column II
    (A) Imbibition (i) Movement of water molecules across a semipermeable membrane
    (B) Active transport (ii) Free movement of molecules from high to low concentration
    (C) Diffusion (iii) Absorption of water by dead plants or cell by surface attraction
    (D) Osmosis (iv) Passage of a substance from lower to high concentration using energy

  • Question 13
    1 / -0

    Consider the following diagrams:



    Which of the following is correct for solutions present in beakers A, B and C?

  • Question 14
    1 / -0

    Which of the following is the reverse of turgidity?

  • Question 15
    1 / -0

    In a beaker, potassium permanganate dissolves in the water due to 

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