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NTSE Stage 2 SAT 2019 Exam Question Paper

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Question : 93

Total: 100

A student was performing an experiment to understand the enzyme-substrate reaction. The student measured the formation of coloured product using a colorimeter. The student plotted the graph below which shows the reaction rate versus the substrate concentration.

Following interpretations were drawn by the student:
A The higher concentration of substrate acts as an enzyme inhibitor.
B. It is a sigmoidal curve with sharp transition from low to high reaction rates over the increasing substrate concentration.
C. The curve reaches a plateau and does not further increase with increasing substrate concentrations due to saturation of enzyme with the substrate.
Choose which of the interpretations of the graph are correct.

A and B
A and C
B only
B and C

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