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KVPY Sample Paper KVPY Stream-SX Model Paper-24

  • question_answer
    During the early stages of alcoholic fermentation, there is a high rate of growth of yeast. After some time, the rate decreases. Which of the following conditions in the culture medium is least likely to have caused this?

    A) Depletion of glucose

    B) Depletion of oxygen

    C) Depletion of mineral salts

    D) Accumulation of waste products

    Correct Answer: B

    Solution :

    Yeast causes alcoholic fermentation without using oxygen and hence depletion of oxygen has no effect on the metabolism or growth of yeast cells.


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