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  5. The Fundamental Unit of Life

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

  • question_answer
    Which of the following are covered by a single membrane?               (NCERT Exemplar)

    A) Mitochondria                             

    B) Vacuole

    C) Lysosome                                 

    D) Plastid

    Correct Answer: C

    Solution :

    [c] Lysosomes are simple, tiny spherical sac-like structures evenly distributed in the cytoplasm. Each lysosome is surrounded by a membrane and contains powerful enzymes capable of digesting or breaking down all organic material. These enzymes are made by rough endoplasmic reticulum.


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