9th Class Science The Fundamental Unit of Life Question Bank MCQs - The Fundamental Unit of Life

  • question_answer
    Select the odd one out.

    A) The movement of water across a semi-permeable membrane is affected by the amount of substances dissolved in it

    B) Membranes are made of organic molecules like proteins and lipids

    C) The cell membrane separates the content of the cell from its external environment

    D) The cell membrane allows the movement of all material across it

    Correct Answer: D

    Solution :

    [d] The plasma membrane or cell membrane allows or permits the entry and exit of some materials in and out of the cell. That's why, it is also known as selectively permeable membrane.


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