9th Class Science The Fundamental Unit of Life Question Bank 9th CBSE Science The Fundamental Unit of Life

  • question_answer
      What is the functional difference between a plasma membrane and cell wall?

    Answer:

       
        Plasma membrane         Cell wall
    1. It provides support and gives shape to the cell. 1.It gives strength and rigidity to the cell
    2. It is semipermeable in nature and allows entry of selected molecules into the cell. 2. It is completely permeable in nature.
    3. It is not elastic. 3. It is elastic and controls the cell's turgidity preventing its bursting
     


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