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

  • question_answer
      ­­­­ How is a prokaryotic cell different from a eukaryoric cell?                                           [NCERT]

    Answer:

         
              Prokaryotic cell     Eukaryotic cell
    1. Prokaryotic cells are generally small in size (1-10um). 1. Eukaryotic cells are comparatively larger in size (5-100um)
    2. The nuclear material is undefined having no nuclear membrane and is called nucleoid 2. A true nucleus having a nuclear membrane is present
    3. A single chromosome is present. 3. More than one chromosome is present.
    4. It does not contain membrane-bound cell organelles. 4. It contains membrane-bound cell organelles like mitochondria. Plastic, etc
    5. Ribosome is of 70s type.  5. Ribosome is of 80s type
    6. Cell division takes place by fission or budding or fragmentation. 6. Cell division takes place by mitosis or meiosis.
     


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