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KVPY Sample Paper KVPY Stream-SX Model Paper-8

  • question_answer
    In an investigation to determine the effect of temperature on the activity of an enzyme, the time for all the substrates to disappear from a standard solution was recorded. Which graph shows the result of this investigation?

    A)        

    B)

    C)

    D)            

    Correct Answer: C

    Solution :

    Since, the y-axis is time, the graph obtained would be a vertically inverted reaction rate us temperature graph. As the temperature increases, the time needed decreases at first until a minimum because an increased number of molecules have sufficient energy to pass over the energy barrier and react to form products. A further increase in temperature results in a more rapid increase of time required because of temperature induced denaturation of the enzyme.


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