2. Solved Papers
  3. WB JEE Medical

WB JEE Medical WB JEE Medical Solved Paper-2011

  • question_answer
    The main difference between Gram positive and Gram negative bacteria is

    A)  cell membrane                

    B)  cell wall

    C)  ribosome                           

    D)  mitochondria

    Correct Answer: B

    Solution :

                    The main difference between Gram +ve and Gram -ve bacteria is due to cell wall. The cell wall of Gram -ve bacteria contain peptidoglycan (10%), lipopolysaccharides, lipoprotein and phospholipid, while cell wall of Gram +ve bacteria contain peptidoglycan (60-90%), teichoic acid and lipids.


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