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

  • question_answer
      Explain main functional regions of a cell with the help of a diagram.

    Answer:

                      Plasma membrane, cytoplasm and nucleus are three main functional region of a cell.  (3) (i) Plasma membrane It is a thin, selectively permeable membrane, covering the cell and is made up of lipids and proteins. (ii) Cytoplasm It is an aqueous material containing a variety of cell organelles along with non-living inclusions. (iii) Nucleus It is the control centre of a cell. It contains the cell's hereditary information (DNA).                                                                (2)


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