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KVPY Sample Paper KVPY Stream-SX Model Paper-8

  • question_answer
    When mitochondria are extracted from cells for biochemical study, they are usually kept in a \[0.25mol\,d{{m}^{-\,3}}\]sucrose solution. Why is the sucrose solution used?

    A) To act as a solvent

    B) To provide a source of food

    C) To assist in the extraction of enzymes

    D) To prevent the mitochondria from changing in structure

    Correct Answer: D

    Solution :

    The osmotic pressure of \[0.26\,mol\,d{{m}^{-\,3}}\]sucrose solution approximates that of the internal environment of the mitochondria thus this solution is applied to prevent the mitochondria from undergoing structural changes.


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